I would like to get a Raq2, but I have listen someone that tell that the cobalt is not a good machine. Some opinion ?

Siz :D

I host my site on cobalt raq2 and think it is very good. the speed is good and features are good. some people say that its very limiting but i fond them to be the best server alround.

We used RaQ2's when we first went on our own...Good initially, but the processor is very underpowered, same on a RaQ3. Perl also slows it down as well - a lot! If you plan on reselling, do yourself a favor and go with Alabanza. They have a system that tracks clients, automatically emails them when billing is due, suspends sites automatically...very nice. A little more expensive but well worth it.