Need Some Advice on Panasonic Plasma

Thinking about buying a Panasonic TH-50PE700U at Costco today, this is the same as the TH-50PZ700U at BB. I guess I just want to know if anyone has had any problems with it. I was set on buying the XBR4 52" but it is a $1000 bucks more. Need some input fast, they open at 10am and it is now 9:15 am.

Thanks for any input...