I really like Altra shoes
929698
Fast shipping and fair price.

I've been wearing Instincts since the first version. I've liked most of the versions, and this is a good one. I have a 2E or 4E wide, high volume foot and this fits comfortably - width and toe box height.

I chose no for "Do these shoes provide good arch support?" because I have really high arches and that's not something I can evaluate.
3601664
First pair of Altras and I love them. They did take a bit to get used to my toes having more room, but now I'm not sure how I was used to being toe-cramped in my other shoes. These are great for the trails. Looking forward to trying some more road-worthy pairs soon.
2902457
Although the width of these shoes is labeled "medium," they fit my wide feet due to the foot-shaped toe box. I use these as street shoes, but wear different Altra styles for running. I love this Altra brand for comfort!
4702166
I like this shoes a lot, although they run smaller than normal but otherwise, great lloking and quality shoes
2100942
I really like these shoes. I'd buy another pair in a different color. These look stylish and are very comfortable.
147346
I actually considered buying another pair but decided to move on to other styles. I had a positive experience with these shoes.
1810137
I wore the Altra Men's Superior 1.5 for the first time on a Xterra 10 mile race (yes rookie mistake, never wear new shoes on a race). They worked really well. Crossed two rivers, they got wet and they dried fairly quickly.  No water inside the shoes while running (I think the water goes out via two tiny holes in the front of the shoe).  The terrain was not rocky but there were some slippery section on the trails and the shoes performed very well. I love the wide toe box, the zero drop, and although they are cushioned, you can still feel the ground.
The price and Amazon delivery was outstanding.  I think I will buy a new pair before they run out (since it is an older model).
4449078
I'm biased because of my general love of puma but I really like the way these shoes feel on my feet and for someone who prefers a very light, form-fitting shoe, this isn't bad at all.
1476514
Over the last year I have heard a lot of hype regarding the Altra and Hoka brands, so when I started looking into replacement shoes these were the two I focused on.  What pulled me to purchase the Altras was the fact that they were zero drop but also had adequately cushioned soles.  Also, my friend recently purchased the Lone Peak 2.5s for Spartan races and hasn't stopped raving about how comfortable they are.

I decided to try the One 2.5s because of how light they are.  These weigh just about as light as my Mizuno Wave Universe 4s, and I barely notice them on my feet. I took them out for a short 1.5 mile run to try them out and I loved how responsive they were while providing ankle saving cushion.  My only gripe is that they run about a half size too small.  My big toe just barely rubs the front seam, but it is not so much to cause discomfort. I would equate the length fitting to Nike, I am typically a 9.5 but I wear a 10 in Nikes. I love the large toe box, as well, it provides plenty of room for my wide feet to splay.

I would highly recommend these shoes for anyone looking for light weight racers (I intend to use them as for the 10k portion of an Olympic triathlon) or for light every day trainers. I plan to update this after I have ran roughly 100mi in them.
2597906
This is my 3rd, yes 3rd, pair of Altra Paradigms and my 5th pair of Altra shoes overall (2 Torin 1.5s). I love these shoes for the long run. Can log lots of mileage with practically no pain. I also recover much faster the next day because of the max cushioning. I must knock one star off for durability...I just got back from an 11 mile run one a pair that has barely 40 miles on it and one tread has completely worn off. Granted, some of it is probably due to my running style and my heavy set frame (5' 10", 190 lbs) the outsole should not lose its tread features this early in mileage.
So why do I keep buying the shoe?
I keep buying the shoe because I have slightly wide feet that are not wide enough for extra wodth shoes but too wide for any other brand. Altra is the only brand that fits me true to size. I've always worn a 9 or 9.5 to accommodate width but with these Paradigms, I can actually wear a 8.5 which I can't remember the last time doing so. Moreover, I really do not feel any pain with these shoes. The cushioning is alot but it's still firm enough to give you energy return with each mid/forefoot strike. Don't get Altras if you are a heel striker.

***100 mile Review UPDATE***
As much as I LOVE LOVE Altras and love my Paradigms in particular, I've got to be honest and say that I'm a bit disapointed in both the company and this particular shoe model. After my initial review, I continued running as normal (about 20 miles/week) and now must report that the exposed EVA portion of the outsole (the white part of the sole around where your pinky toes would splay) has practically worn down to a nub. Yes, I tend to underpronate more than what is considered normal but the wear should last more than 100 miles. I can say that the other parts of the outsole are holding up, it's just that small white portion of exposed EVA that is taking a beating.
513722
I discovered zero drop or negative heel shoes about a year ago, entirely by accident.  Suddenly my lifelong back and hip pain were almost completely resolved, no longer requiring expensive treatments at orthopedic surgeons, physical therapists, chiropractors, massage therapists.  I have almost given up taking NSAIDS for pain.  I have slowly and carefully replaced all categories of my shoes with Kalso Earth Shoes. However, Earth no longer manufactures a real  athletic shoe. After much online research I found Altra.  I have a fairly narrow foot and was worried Altra would be too wide.  However this model ran narrow in the mid foot according to online reviews. So I bought my usual one-half size up that I always purchase in a running shoe so I can wear socks. There would not be room in this shoe, though, for an orthodic and a full size up would make the toe box "break" in the wrong place. However, I have worn them barefoot and did not get blisters.  This shoe was immediately comfortable; I wore them to Walmart shopping for my first experience. No rubbing, no blisters.  My foot is already used to a negative heel, so no leg or upper back pain. The second time I wore them all day.  No problems at all. There is adequate padding on the sole that I do not experience any heel shock; however, I can sense the ground, which is important to me as proprioception prevents falls.  I am sixty-seven and no longer run, although I would like to begin intervals again. I think this shoe would serve on our nearby dirt trail. The laces, however, are a somewhat flimsy material.  For a real runner, I would replace them. The quality of the construction seems ok, not terrific for the price, but that is par for a running shoe nowadays.  I replace my shoes regularly in any event as this prevents knee pain. Altogether this is a good investment for a running/walking shoe. The wide toe box makes them look a little wonky, but I am used to that from Earth shoes.
2128515
Love these running shoes.  Super light weight and roomy in the toe box. If you're not used to a zero drop shoe they take some getting used to, but I feel like I will be sticking with the Altra brand for a long time to come.
1269990
I really like these shoes! they are very breathable and flexible. I could wear these all day and be fine, and thats coming from someone who extremely flat footed. I did order a half sizer larger, I'm usually a 10 and I ordered these in a 10 1/2 and they fit great.
265756
I really like the shoes, but I think I may have purchased a size too big. I own a pair of the Instinct II shoes in the same size, but they seem to fit much snugger. I'm considering returning the pair I purchased for a pair that is 1/2 to 1 size smaller. I'd recommend trying them on in the store, even if you already own a pair of Altra's, prior to purchasing online.
513331
I really like these shoes.  I have short, wide (4E) feet and these are just a bit bigger than New Balance.  The straps are too long and I don't know if I can make them shorter but the shoes are great and they are a little cheaper than New Balance.
1053922
I actually really like these shoes a lot.  I was unsure about ordering them, but quickly changed my tune upon receipt of them.  When I first was wearing them, they were tight, but I chose thinner socks and wore them in a little bit and now they are my favorite shoe to wear.  I work in a casual office, but am not allowed "tennis shoes" or sneakers in normal speak, so these serve as a casual, and now super comfortable alternative.  They have a thick rubber bottom, so they are cushy when you step, and I feel comfortable moving quickly in them if I need a quick getaway.  They are somewhat flat, so if you are looking for high arch support, these are not the shoe for you.  BUT there is enough arch support that you are not flat footing it.  I would definitely recommend these shoes, and I'll likely purchase another pair for myself - or two!
2558839
I really like these shoes and would like to give them a 5 star rating but just quite can't a few counts.  I don't have wide feet but they feel a little narrow around the arch especially when I first put them on.  After a few minutes I don't notice this anymore.  They are otherwise comfortable and light.  The heel feels nicely cushioned and the wave design absorbs a lot of impact but I would like more cushion at the ball of my foot.  That's not for most people though as I'm used to very heavily cushioned Hoka brand shoes, but it also keeps me personally from giving these a 5 star rating.  I really like the look and I reserve these as my casual going out shoes.  I've done a lot of ball game and city walking in these and they are comfortable but I don't run in them.  Although I think they would make great running shoes for other people.  Otherwise, great quality, nice design, good looking, and very breathable.