This computer screams. This is my first mac in many years and is one of the best pieces of hardware I have ever used. This computer is not plagued with the problems that are described with the 15'' and would be recommended for anyone who thinks that size is not an issue. The wireless appears to be working fine and the any problems with the screen that people had previously posted seem to be fixed. It is my opinion that this is not running as hot as the G4 PB, other than right at the top. Other than that the heat is being disperced very well and is not bothering me at all. SUPER QUIET also no whine. I think all of the bugs may finally have been fixed!!!