Got my 663 today from Legend SS2. The price has drop a bit. Titanium color just like my previous 461. This thing is a lot bigger than 461. The height and depth is much more but same width.
1st impression sq wise

never regret buying.
Suddenly my 5.1 yammy speakers sounded like they worth much more than they actually are. I thought my center speaker is lousy but now dialog is so clear even at lower volume. I just use basic setting, set speaker to 6 ohm, turn off the eq than pop in Cars DVD into my Pioneer and send every bits thru hdmi. Pheww

took just 5 mins

no sweat
To put it short...sweeett

I love it
Now need to study the manual, test CD, test straight mode, direct mode, ipod, 17 dsp mode, bla bla
Not even 1 day already itchy to get another 2 speakers for back surround
If you thinking of buying 663, dont hold ur horses. Just go get it