Pros: Plugged it in about 20 seconds. Made a world of difference. This stick of ram ugraded an old hp zv5000 so now my sister is able to play farmville on facebook.

Cons: none so far.

Pros: I plugged it in and it worked.

Cons: I unplugged it and it never worked again!

Overall Review: For whatever reason this thing decided to stop being recognized by any of my computers. I plug it in from time to time to see if it's software has come out of hiding, but not yet. This is cheap for a reason. Spend at least $20 on something that will last.