From what I gather the 890 is a good solid performer and is quite revered on these forums, it has it's own massive thread
HERE
The only downsides I can see is that the amp doesn't carry a 1080p compatible video output, but 1080i. But hey, just connect your PS3 directly to a 1080p TV and that's not a problem.
And lastly it won't handle uncompressed LPCM audio, which is a bit of a downer when your PS3's Blu-Ray player will convert HD audio into LPCM, and has the ability to send it over HDMI for superior sound reproduction.
Other than that this seems to be a pretty decent system.