Pros: Very responsive, received as a birthday gift but would have been worth every penny if I had paid for it. Been using Logitech trackballs for over a decade and love them. I find them much easier to use than mice and easier on the wrists. I have had this for over a year and it works like it did the day I opened it. Still on the original batteries.

Cons: Does require frequent cleaning but easy to do, could use a few more features.

Overall Review: For over a decade I have challenged dozens of my family members and friends to use a trackball exclusively for 1 month and then try a mouse again. The vast majority of them are still using their trackball. I love the thumb balls they seam to work best for me but if you like try others and get used to them you'll probably not go back to mice.

Pros: Mass storage for price.

Cons: I bought this drive after the one in my computer died on me on Christmas day. After arriving late I installed the drive and over half of it was unusable due to bad sectors. I RMAed it for a replacement. When I got the new one in it worked perfect for about a week. Which at that point it locked up my computer the instant I tried to access it even through CMD prompt.

Overall Review: Noticed an odd clicking with this drive but after visiting Seagates site it states that this in normal. If it were not for the drive dying I would say that this is no big deal as you can't hear it after the cover is put back on the case.

Pros: 1.) easy to set up 2.) fully modular 3.) Eco mode 4.) plenty of power

Cons: LOUD very LOUD. I bought this PS to replace an existing loud one. While I can set up the Eco Mode to start out silently, no matter what I do, it doesn't take too long and the thing is quite loud. Granted it's not nearly as loud as my other PS but still annoyingly loud. I can still hear it thought my over the ear head phones (logitech g930).

Overall Review: Although I bought this because of all the good reviews talking about how quiet it was. Frankly at this point I would not recommend this product to anyone. With that said, a lot of people did say it was silent, it looks like I will be RMA'ing this thing.