I am looking to purchase a new Audio Interface. Currently, I have a Line 6 POD Studio UX1. It served me well for about 2 years, and it helped me learn a lot about recording, but now it is dying and I am looking to upgrade to something that will give me more control and flexibility. I was looking at the M-Audio Fast Track 8R and the Mackie ProFX12. I particularly like the ProFX12 because of course it also a mixer. Which one would you guys recommend? Thanks.