I'm not going to even begin to review this until I've had more time to dig in (I got it yesterday) but so far I'm pretty happy. Coming from a Standard just having the tools that the Ultra had and I didn't was cool.
As for the modeling, I've always loved the Axe Fx through an amp and 4x12 cab but I was never thrilled about playing it FRFR. This morning all I had at the house to plug it into was a ART SLA and a very used Yamaha 12" / horn wedge. I don't hate it, and that's a very good sign. I've got to dig up a USB cable so I can connect it to my Pro Tools rig and really get going.
Congrats! I think the modeler+2:90 rig is the best, but everyone's different.