kathyk,
I LOVE my 7700. I am mostly a quilter, and I can sew a perfect 1/4" seam with it and use the walking foot to stid a serpentine stitch, and it all looks good. If I do make a garment, I can use an edge stitch on the seam allowance, and that looks good too.
I also have a Bernina 710 (for almost twice the price) and it (7700) is a MUCH BETTER machine than that, The 710 always requires a lot of fiddling and adjusting to get a decent stitch. I had to buy a ss plate and an additional foot just to get a decent straight stitch. And even that isn't as nice as the 7700. The 710 also requires a separate walking foot($170) to quilt. It has a built in dual feed, but that is only good on two layers. The Bernina has some beautiful decorative stitches in 9mm, but the walking foot only allows for 5.5 wide stitches.
I didn't know that the red 7700 was still being made. The red and the white are the same machine, just the accessories are different.