Pros: Small, comparatively fast. Long battery life (if you get a working one)

Cons: I ordered two, and one came with a DOA battery. I already had experience with a couple other models, so I didn't read all the reviews, just the first 3. So I didn't see the high rate of DOA or failing batteries and power supplies being reported. Also, except for the RAM, this unit is NOT upgrade friendly.

Overall Review: I'll see how Asus handles the replacement process. From other reviews, it sounds like it could be weeks or months until I have a working unit.

Pros: Did an adequate job for 5 years.

Cons: Power supply failed after exactly 5 years. That might be impressive in some cases, but the devices attached to it still work fine. It was powered during that time by a double-conversion UPS. So power quality to the power supply should not have been an issue. I had 3 drive failures, but those are probably not caused by this unit.

Overall Review: Disappointed because I need to find another identical device to extract my data from the drives.

Pros: I bought this model because my coworkers have tried many and all chosen this one. They said they sound great, are super lightweight, easy to use, and battery lasts a long time.

Cons: Mine arrived not working. The only thing it will do is flash a purple light once a second. Contacted manufacturer tech support, they said it was defective and return to vendor. The first thing they tell you to do is turn it off and back on. This one won't even do that, it will just happily flash purple.

Overall Review: I hope in several weeks when I get it, my replacement works as well as my coworkers units do.