Sonar X1 with V-Studio 20 (VS-20)??

Is there anyone out there using X1 with the VS-20?

I'm thinking of getting one as my first Windows 7 compatible audio interface / guitar effects generator / controls surface for X1.

I realize it has some limitations, and I'd have to get a MIDI interface in addition, but the the price seems pretty good for the combination of features.

I'm thinking that if my audio needs become greater, I can always use the other features of the VS-20 in addition to a more functional audio interface.

BUT - I'd like to here if anyone has had any experience with the VS as a sole interface in conjunction with X1.