I got a 7700 from my DH for Christmas last year - he actually went to the dealer ALL BY HIMSELF and bought it! To some of you, this may not seem like a big deal, but if you knew my husband......
Anyway, I love this machine!! It's so much quieter than my Bernina and I love the 11" throat. FMQ is a breeze. I haven't even begun to try out all the bells and whistles because it's so fun to just sew on it. I got the 1/4" foot and a SID foot for the Accufeed, both of which are wonderful.
If I had any complaint about the machine, it would be that it's a little heavy to carry into a class or retreat. Easily solved by the purchase of a wheeled carrying case (or I just take my smaller Bernina to class...)
Congratulations - you'll love it..