Received my 60A3000 on Friday, spent the whole weekend tweaking (at first) and then analyzing the picture. Initial impressions:
1. At a seating distance of 11', the 22" stand I bought is just fine. Would 18"-19" be better? Sure, it would bring viewing height to dead center of the TV. But I have noticed no viewing angle problems from the couch and loveseat, and no loss of brightness uniformity.
2. Geometry is very good. Perfect? Probably not. But on watching credits scroll vertically, and paying attention to steady left to right pans, there doesn't seem to be anything wrong with it, at least that's visible to the naked eye. My old Panny RP HDTV (2001) was horrible with geometry.
3. Picture: very, very good, especially after calibrating and taking off sharpness and other enhancements. It's actually revelatory how good the set can be when you toggle between my custom setting and others that I haven't touched (like Vivid, etc.). Toggling between them while a BD is playing makes your eyes hurt (when it's on Vivid). I thought I'd be a little disappointed with black levels coming from a CRT RPTV but I'm not. This set does them well, much better than my LCD TV in my bedroom.
Overall, I'm one of those who is so nitpicky, I often have to fight off buyer's remorse within a few days of purchasing such a high-ticket item. Color me finicky, but I expect close to perfection when I drop $2K on something. With the A3000, it's been 4 days now and not one pang of regret.
For those choosing between the 55 and 60, if you can afford the difference, go for the 60. I've never heard one of my friends say "gosh I wish I'd gotten a smaller set" but I've heard plenty say the reverse...