I have owned a NAD T753 for a year and a half. I absolutely love it and the sound was night and day compared to my5 year old Yamaha receiver. Controls are simple, remote is great, Power is Very good. I have read about NAD quality control issues, but I think that was mainly past tense. The T773 is supposed to be a great unit, I just couldn't afford it at the time.
I would recommend NAD. There isn't many NAD friends on this forum, but don't despair.