I bought a used M-Audio Fast Track Pro Interface for my computer and installed the demo of Amplitube 3. The Windows 7 driver for Fast Track Pro works with Windows 8 too. I know a little about computers but I had a hard time making the Amplitube work. There is a setting in Amplitube that was set to Direct X, that has to be changed to ASIO. I installed this on my desk top Windows 7 and my old laptop with Windows 8. I noticed annoying latency when I started playing it through the laptop, but I must of clicked something because after 2 minutes I could not detect any latency. The demo only has 5 amps with 3 usable for guitar: Clean 1, Clean 2, and British Tube Lead. I'm not trying to sell any of these products but I just spent 2 hours on these three amps and they sound wonderful. Clean one with 6L6's is Fender clean. Clean 2 I liked with EL34's, it has a nice slightly warm break up. British Tube Lead sounded like a Marshall to me. The demo version of this would be adequate for me. Although I did not see a tap tempo on this version for the delay pedal or rack mount delay. There are only about 7 basic pedals with the demo but they all worked well. Apart from the one setting this software is pretty straight forward and easy to use. I never read any manual I just started pushing buttons and knobs. I still want to try Guitar Rig, Overloud TH2, and Revalver before I buy a full version. One thing I'd like about Amplitube is the ability to buy the Fender amps. My only other modeling amp is a Behringer V Amp 3 that has saw very little use because of it's lack as a modeler. All I can say is amp modeling has come a long way.