I just had a quick google and it's far from conclusive.
From what I have just read there are still reports that it suffers from the disc circle scratching problem which is a side issue I know but disappointing all the same.
Also from what I gather the hardware inside the slim is the same as the fat consoles, it appears that the only difference is the cooling/ventilation.
The point I was trying to make is that I'd like to be excited about Xbox but I hate buying products that are unreliable and where product revisions have failed to conclusively address the problems. It doesn't inspire me with confidence.
I didn't really expect to get into a fanboy argument on OCUK, I thought we were all generally quite pragmatic on here with regards to reliability and failure rates on electronics products?
I don't really understand why you're bringing up/comparing to PS3 slim either... What does that have to do with Xbox?