Really worthwhile upgrade
925017
I used these to replace the flimsy silicone tips on my otherwise wonderful Monoprice earbuds.  These are, instead, made of a foam similar to what is used in earplugs so they provide great sound isolation, comfort, and grip, turning any earbud into a significantly better product.  I use them on the train every day and they sound great!
3551235
Popped one of these in my M4700 to modernize it a bit and I'm highly satisfied. Software came with code, I was able to clone the disk over and get up and running in less than an hour, including install time. Well worth the improvement in startup performance and battery life.
66052
Replaced my 500GB mechanical drive with the Crucial MX 200, the process was simple did it myself, and what an improvement in performance! No exaggeration when I say my Mac is running 10 times faster. If you are doing it yourself be sure to pick up the StarTech USB 3.0 to 2.5" Hard Drive cable to make creating an image much simpler... Great Upgrade works perfectly..
1262017
It came quickly and much improved the performance of my aging netbook.
It's been said that W7 Basic does not recognize the full 2 gig, but I have not found this to be the case.
Also, that the price has come down substantially makes this an upgrade worth doing.
143873
It extended the life of my machine by a year and counting. The change in performance is very noticeable, even more than when I upgraded the RAM from 4GB to 16GB.
1153411
This was an easy upgrade for my older intel mac mini.  The speed increase vs from the original 5400rpm disk and capacity hike from 80G to 160G are both useful.  Only downside is that it's a noisier than the original when it's under load e.g. when I was installing new software, startup/shutdown.  During 'normal' operation, browising, streaming, etc. it's not noticable - but these are not disk-intensive operations.
Pros: Faster startup/shutdown and application launch
Cons: A little noisy when doing disk-intensive operations

Some people have commented about heat problems - but even when installing a new os which will hit the disk and cpu hard there was no noticable heating versus the original, but I did blow out all the accumulated dust in the box when I installed it, which may be helping.
160521
I'm not a tech expert, but I found installation to be simple and the functional improvement on my old machine to exceptional.  In fact, even though my computer was just a little over a year old, the jump in performance from a standard hard drive to a solid state drive was remarkable.  Start up and shut down are much faster and performance in every application has increased.  For the price, I think this is an excellent upgrade.
4622114
Let's just say that I'm not very fond of changes with the things that I'm comfortable with. But this change was much needed for me. Prior to getting this PC I was still using Windows Xp which I really enjoyed,but the new technologies are no longer making any software that are compatible with Windows XP. Therefore, I need to upgrade. I'm glad that I picked this PC not only is it faster, it's so easy to use. The speed is amazing , and gaming along with live streaming online is a breeze! I highly recommend this to anyone. It also comes with amazing entertainment software.
909370
The upgrade is worth it if you are buying a new cover.
4465027
Upgraded from the stock 160GB 5400rpm drive in my 17" MBP.  Cloned the contents of my old drive onto this one, and everything is noticeably faster, much faster.  Granted my old drive was over 80% full, but this apples to apples comparison has me amazed.  Also, much quieter.
397067
Aside from my motherboard having issues resuming from sleep, and sometimes reboot (I suspect due to the 1.65 volt xmp setting) it seriously boosts performance.  I'm getting average 10fps+ going from Mushkins 1600 memory.  If your motherboard/cpu can support this and you have slower memory, this upgrade is totally worth your consideration.
3502624
Great upgrade for my laptop. Easy to install. My computer can do a "restart" in less than five seconds and all functions are lightning fast. This is a must if you're doing any upgrades.
2312554
I bought this a year and a half ago to upgrade my laptop to 8 Gigs of RAM. Even though I was coming from 6GBs, the performance boost was noticeable. What once was a crashed browser, now has more tabs open than ever, and keeps chugging along. I also installed a 500GB SSD, and the performance of the machine is so much better than it was, I will have to wait a long time before considering an upgrade. Crucial has always made a reliable product, and their memory is always top notch. If you have room for this in your machine, it's absolutely worth the upgrade.
4875387
Quick, easy, noticable upgrade. No tools required!
700297
Really enjoying this upgrade (at least for me it is).  Better screen & graphics.  Faster.  Easier in most respects.
2881788
Really improves everything upgrading from an HDD.  It's still working lol.
2696456
This is a really easy install to upgrade your PS3 if you know 2 things:

1) You will need a #0 Philips head screwdriver.
2) Download the latest update (in my case 2.60) from the Playstation website to a disc or flash drive.

It is extremely easy to strip the screws with the wrong size screwdriver (guess how I know...)

Apparently there is also a difference in some 40G systems from all the data you first run into on the web about changing hard dives. It is not as simple as swapping out and then hitting the X-button to format. Mine asked for the update media to be inserted first, then hit select and start to proceed. It then proceeded fine, finishing in about 20 minutes. Not difficult, but it might save you some stress to know that it may be a little different from the instructions you usually see on the net.

Otherwise, it works great, and I highly recommend the simple upgrade.