Makes a great cup! Could be a bit more robust though... UPDATE: Company read my review and offered replacement!
594487
I use this thing to make coffee every morning, and so does my wife.  We brew in all about a pound of coffee per week. It makes better coffee than any machine can do, hands down.  I suppose there is no technology to get in the way, and because of that you just get a good cup of coffee.

I've gone through one of these already, in about a year's time.  The flange on the plunger broke off and the tube was so full of micro-cracks that it couldn't hold a seal when plunging.  My second one is also showing signs of deterioration, after about a year's time also.  People I know who own one of these and don't use it as much don't report the same quality issues I am having.

I would easily give 5 stars if I was not about to have to buy my third one.

***UPDATE***

I've lifted my review from 3 stars to 4, after this company contacted me and offered a free replacement.
4912931
i bought two of these one for me and one for a friend as a replacement for one i broke accidently. Hers was pretty close to perfect. it was level at the bottom and the lip pf tha cup. Mine however was not. The lip is higher on one side of the cup and the based is just a tad bit off. You cant really tell when you put the lid on it but in the begininng it really bugged me. if this cup broke i probably wouldnt buy it again. not because of the minor defects but because i want something bigger. if they made a bigger size i would def get. this cup always gets peoples attention which is why i bought it in the first place :-)
337159
This was great!....until it got a tiny tiny hole towards the edge where the plastic is sealed from normal wear and tear (rolling it up as it gets empty and for storage).  Used it about once or twice a week.  Doesn't take up room like a water bottle and leak proof (if no tiny holes develop).  Wish I could return it but amazon won't let me as it's 1.5months past the return window.

Update:  Contacted the company and was sent a replacement under warranty.  They didn't have the color and size I originally ordered but it's ok, they gave me a bigger one as a replacement.  Customer service from Vapur was fantastic!  Will see if the new one lasts.
2648183
I bought this to replace my old frother, which I had for about two years.  I got it on 1/30/16, and on 2/7/16, it had already broken.  I only use it to mix my bulletproof coffee (coffee and grass fed butter).  I really loved the frother and the two speeds, except the fact that it broke after two weeks.  The older one I had was half the price and lasted me for two years.  The plastic part that holds the whisk in place is where it broke.  I just read a bunch of reviews, and it seems to be happening to a lot of people.  If it had lasted a year, I would have given it five stars.

Update:  immediately after I wrote the review above, customer service emailed me and sent me a replacement at no charge and also a nice surprise gift on the side, a stainless steel frothing mug, so I have upgraded them to five stars.  Thanks
1648008
I love this cup but please be aware that it is SO FRAGILE!!! I have replaced mine three times because I love it so much, but once I simply knocked it over gently while it was on the carpet and it broke. :( I swear I'm not a klutz! That said, the steeper is perfect and easy to clean and everything about it is so attractive! It's just very breakable.
133798
The teas cup is awesome, but the bottom has a little hole to let the insulated area breath.  This hole let's water in when hand washed and it's impossible to keep the glass from having water/condensation in it.  Super frustrating and takes away from the aesthetics of the cup.  I don't know how you could avoid this from happening?

UPDATE:
They sent me out a replacement cup immediately and it looks great.  i will be very careful while hand washing it this time around.  the key is to avoid turning the cup upside down while washing.  Wash from the top only to avoid water getting in the breath hole.
954300
These are really good measuring cups.  I've been using mine for several years.  The markings are still intact, but somewhat scratched.  My only complaint is that after years of use, the bottoms of all three cups have cracked and now leak.  Not sure how this happened as we are always very careful with them.

UPDATE: I emailed OXO and they replaced all three cups free of charge when I told them they were cracked.  Great customer service!
866905
All in all, these are good mugs.  Spill proof, easy to clean, and does a good job keeping contents warm.  However, Im a bit torn on what rating to give.

The first one I had was amazing. A solid 5 stars. Then the bottom fell off after a year of daily use.  Not that big of a deal.  I definitely got my moneys worth out of it. I reordered the exact same one.

The replacement looks identical but it is horrible.  Unlike my previous one, the outside becomes warm as soon as I fill it up and my coffee is cold in about an hour.  Im not sure what has happened with this new Contigo but its unusable.  Ive gone back to my old Contigo while I decide what to do.

Looks like there may be the occasional quality problems with these.  Anyone else have this happen?
3298541
I do have one concern--the cups were bent downward a little upon arrival and had to bend them back.  My concern is that the way they are welded on may cause issues with them breaking off eventually.  I bought it for a gift so I hope that doesn't happen.  I chose this one because the only comparable one quality wise was a very commercial--looking one and I wanted an elegant one.
3916492
I love my tumbler so far!! It's so cute and it's sturdy too. I haven't put this in the dishwasher and honestly I don't plan to, reading some of the other reviews makes me think I should continue to hand wash this. The lid is a bit tight and hard to twist off but no leaks so far. ***Update: I dropped my tumbler and the actual cup was fine but the straw broke in half. I just ordered a replacement but I figured I would post the update. I still love it!
3654687
So I saw these cups and thought Cool!! These cups are just like the ones they use at a thousand different restuarants, and always feel familiar and easy to drink from. I also liked the amber/retro look, but basically i wanted them because i want to keep my glassware from breaking and thought these would be more durrable for everyday use. Well I recieved the cups and right away saw one was broken?!?!? They came in a big box full of bubble wrap, but i think the breakage happend before sending, also they were squeezed so tightly together it was almont imposible to pry them apart. afterwards i noticed that one more cup had a hairlind break on it. SO BEWARE, I'm sure i can send them back or get a refund from amazon, but i don't even want to bother, 4 good ones, I'll live with it, and the cups seem to be pretty good so far, use them all the time. don't know if I'll order agian??
3032720
Fantastic mug, but after a few months of use, the lock broke. I'm hesitant to buy another one because of that. However, until that, it was the best travel mug I'd ever used. It kept my coffee hot for hours and hours, and never leaked. I'm really bummed that the lock eventually broke. I guess I wish it was more well-made, but if you get lucky and get several years of use out of yours, I think you'll be incredibly happy with it!
3980000
Cups have been great so far. Bought a few of these in April as gifts for my kids and both straws have now broken. Cracked while in the sink from clanking on other dishes I guess, but both went out that way. Bummer! Really fragile glass like plastic straws. I have other cups like these that I bought from walmart years ago and the straws are more like a rubbery plastic and have held up perfect over the years. Cups are great....straws not so much. :(
649003
I really wanted to like this cup because it's a great idea - but the material is just not strong enough. I received the first one and it tore immediately. The shipping company was great (no complaints there) and they replaced it immediately. I thought maybe it was just a bad seam in the first one - but it didn't take long before the cup tore again.

This is a great little cup if you are very gentle with it - but it needs to be much more durable.
1944764
Love love love this cup. Been using it daily since it arrived. Has held up great to daily hand washing. Unfortunately the straw was received shattered, likely due to being packed with a bigger, heavier item I ordered.
3082662
Update 4/27/2013 - After my initial review, the company contacted me.  They asked a lot of questions, and listened to what I had to say.  Then, they sent me another box of coffee to try.  This second batch was worlds better than the first, I have used about 10 of the cups, without one grounds explosion!!  The coffee always tasted good, but it is much better now without the grounds floating around!!  Excellent customer service after my initial review!  Good cup of coffee!  Thanks!

~~~~~~~~~
12/1/2012 - These took a long time to get here, because they were back ordered.  Not the fault of the supplier.  However, as many reviewers stated, the quality of the cups is not good.  Nearly every cup I get grounds in my coffee.  This should not happen, and with these cups it does.  I won't be re-ordering.
1582043
Cup is pretty. I love the way it closes. The one problem I see is that the whole top had cracks in it which caused the inside insulation part to come out and caused it to leak. My hubby put it back together with silicone. It works great now.