5 years ago and they're great. The only reason I had to get rid ...
345335
I bought the same exact pair I bought about 6.5 years ago and they're great. The only reason I had to get rid of the old pair is because they grew a little too snug and I ripped a whole in them. But even now they still get some usage from my sister. Great boots :)
3442644
I got these in early 2014 after initially receiving a knockoff as a gift (the purchaser bought from a non-Amazon seller). Luckily we got a refund and I got the real deal.

In short, I've been wearing them almost ever since then. The sound quality is very good - not the most important thing to me, as I listen to podcasts far more than music. It is good enough that I don't notice it. Controls are intuitive and easy to access. Even now, about 2 years after I got it, the battery lasts 2-3 days depending on usage.

There was one problem that developed after a few months: the earbud on one side started getting quieter until I had to crank the volume all the way up just to hear it. I almost always listen in just one side at a time because the noise isolation prevents me from hearing outside sounds. But the volume issue meant I could only ever use one side, which got uncomfortable. I was able to get them replaced for free under warranty. The new set, probably about a year and a half old by now, hasn't had the same problem. The plastic is starting to get scuffed and worn, but the headphones still work great.
4956333
Had it 5 years now, and it's still workin' perfectly.
2517509
Had these for 5 years with no bulb changes. These lights are great. They might get a little dimmer over time, but still get 5 stars from me.
2375633
I bought these headphones about 5 or 6 years ago and they're still going strong.

The two best things about them:
-Great sound quality (especially bass): only the most picky audiophile could complain.
-Durability: they've been on many vacations and car/bus/train rides, and have endured every possible form of abuse. The cords have been bent and yanked many, many times and have yet to short out on me. The folding joints (both ball and hinge) are still in great shape, and the adjustable band still stays firmly in place. The only sign of wear is that the ear padding has worn a little thin.

These headphones are definitely worth what you pay for them, and then some. They can handle a lot of abuse, so unless you severely mistreat them you're set for many years to come.
1556768
These have been mounted and installed in my car for over 5 years now. They still look and sound great.

They are not subwoofer replacements, but Mid-Bass replacements with a lot more gusto. If you want to impress your neighbors, and set off car alarms, get a dedicated box, and advertise for local law enforcement. If you have a speciality application, like under the seats of a truck, behind a pickup bench, door mount, or space-saving trunk setup, shallow subwoofers are a much welcomed category.

My door acts as a sealed box, and the drivers are mounted in the former 8-inch Mid-Bass openings. They're powered by a dedicated amplifier. They have enough power and sound to fill out music in the car. This frees up your other speakers to drive a narrower range, giving you cleaner sound.
3665390
UPDATE 2.5 years later:  Longest lasting headphones I've ever had by far.  Sound great.  Worth it.

Original review:  These are great. My only question is whether they will hold up over time, particularly the point at which the wires enter the ear piece. The ear pieces can be difficult to remove and sometimes requires a gentle tug on the wire. The ear pieces should be redesigned to allow easier grabbing for removal.
2185971
I have had mine now for about 8 years, and I just replaced the foam cups. Actually, the old style foam rings are no longer available, and for good reason: they hurt. The new style is more comfortable, which is what these are. As others have said, they are "open air" headphones, and you will hear noise around you. Others will also hear you. These are really great for quiet rooms, and with no one around for you to bother. I have had the in-ear buds, and these are so much less fatiguing. The mid-range is really incredible. I am still hearing things in my music that I have never heard before; and I've had them 8 years!
4550953
I just have to say I love these headphones. I bought mine right after graduating high school (2012) and they still work!!  They work perfectly. Granted I take care of them but Ive never heard of a pair of headphones lasting five years and still be working perfectly.
4355213
In 1995, I bought a pair of these to replace a pair of Sensenhiemers I bought in 1989. I used them for 14 years, on a daily basis. I used them for nightclub dj'ing, DAW work, listening to my home stereo, playing games on my PC, listening to my Ipod's, they still sound exactly like they did the day I bought them, back in 1995.

But after 14 years, I'm finally buying a new pair. The original's foam padding is starting to flake off, and the yellow foam, itself, is exposed, after almost a decade-and-a-half of accumilated sweat (it still amazes me these things don't absolutely REEK!). The silver SONY lettering, on the sides, have longsince fallen off, my carry bag is tore, which means the wire dangles out, and I accidentaly sucked up my screw-on adapter, when I was vaccuming the house. However, as ragged as the old pair have become, they still sound great, and will still probably get a good bit of use, around the house. Bottom line: Sony may have laxed in quality in most of their other products, but Sony still knows how to make a good, quality pair of high-end headphones.
581282
Purchased these 5 years ago and they have been through a lot since. I've sent them through the washer and dryer at least once, tangled and yanked on the cables a bunch, and even ripped one of the silicone tips. I use them when I'm working out, studying, and in a pinch I've even used them as in-ear monitors for live shows. Even through all the wear and tear, they still perform fabulously and rival my ATH-m50's. They definitely have a bass end, with crisp and clear mids and highs. I would highly recommend these to anyone.
1045578
I got these in 2012 and they don't look a day older today in 2018.  Apparently they are built to last! They really aren't much to look at in my opinion, but that matters very little to me.  They also feel a little bit cheap, but they don't act cheap! They sound great to me.  I have never owned any other headphones, but now I am trying out various wireless headphones because I am sick of the cord, but it's been hard to beat the sound of these (at that time) $25 headphones.  They isolate pretty well and create a clear and immersive aural experience that leaves an impression.  Man, I am going to go wear them right now.
While I am sick of cords in general, I can't really fault these for having one, as I knew what I was getting.  Yes the cord is super long, but it's fine as far as I know; I haven't really used any others.  Lastly, they aren't the most comfortable to wear.  For me they are very much ON ear and they get uncomfortable fairly quickly, but it's bearable.  They apparently go completely over my wife's tiny ears.  Makes me wish I had her small ears.  They have an appropriate amount of clamp so as to keep them safely on my head doing various activities, which I appreciate; I think I just have really sensitive ears.  They have always been comfortable on the top of my head.  In the end, these headphones have been quite good to me over the years.
1913831
Just was I wanted. 5 years now and still perfect. Thanks
1114951
I bought these October 2008 and have used them frequently ever since. I've had many earbuds come and go but this pair still performs like new. I was shocked to see that they're still making these but can definitely see why based on the build quality. They're very light weight but that doesn't equate to cheap construction. The only thing that's changed after 5 years is that the hd201 logo is kindof rubbed off. I should also note that the 6ft cord is very durable; the wheels of my computer chair are always rolling over it with no consequences. I can't compare these to Beats headphones or anything like that because I've never owned a pair but I can say that they fit over my ears like a glove. I love these Sennheisers!!
4388634
Iv'e had this pair since 2011 and the sound was consistently amazing since then. The biggest issue over time is the connecting wires to each headphone, as well as to the jack. They wear down eventually, and eventually come out, even when exclusively used on a  desktop- not in transit or exercising. I would recommend them but they won't last forever.
2660128
In the last 4 years, the headphones have performed flawlessly. While I haven't driven them as hard as I can (used with laptops/desktops/mobile phones), I feel I've yet to really find the threshold.

I've used Boom2 for MacOS to really find where these would shine without getting too muddy. While I'm no pro-Audiophile, I find that increasing some low frequency bass and treble really make these punchy.

Pros:
 Comfortable
 Not too bass heavy
 Removable Cable

Cons:
* After 1 year, the ear pads deteriorated.
817756
Installed it 3.5 years ago and it still works great.