Pros: Great options (heat sensor and manual speed control), great airflow.

Cons: Out of the box the heat sensor didn't work particularly well (very non-sensitive) - and without the heat sensor, the manual speed control didn't work either. I rewired a bit, adding a switch to handle some necessary overrides. A couple months into owning it the heat sensor suddenly became more sensitive, and I needed to remove the rewiring.

Overall Review: Overall good, but wouldn't put this into a machine I didn't own.

Pros: Fast, quiet, and everything you expect from an SSD.

Cons: Broke gradually over 1.5 months. Now no longer eligible for RMA, and BIOS does not recognize it.

Overall Review: Put this into a laptop. Fairly early on there were some Windows errors of "Lost Communication with HDD", generally around recovery from sleep or hibernate. Reboots were awesomely fast, so little worry there. Died for real when I was close to disk full, due to copying some VHDs around. No longer detected in BIOS, tried on multiple machines. If you have any signs of problem, RMA! Don't wait and lose out.

Pros: Does what it says it's going to do. Inexpensive.

Cons: A little finicky with regards to RAID 1 setup - mine had to be both plugged in to power and connected to my computer in order to kick over to the new configuration. This doesn't match exactly with the instructions. Really bright LEDs. I think these use watts of power - they're insanely bright. I stuck a blue and a red sticky note on top of the LEDs, and they're still brighter than the LEDs on many of my other devices. Loud. The small fan on my unit (which was incidentally only screw ed in with 3 of the 4 intended screws) whirs continuously, so I'm thinking of putting it in a ventilated, noise reducing box. This would also eliminate the brightness issue.

Overall Review: I set up a cheap NAS solution with this, a couple of drives, and a Tomato router. If you're going to do this, format to ext3 and not NTFS. Tomato has native support for the former, and needs to use a CPU-hogging library for the latter. Hogged CPU results in significantly reduced transfer speeds, which make this unit look bad. Mind you, you'll get best speed if you connect this unit directly to the PC.