(Note: I am note sure if this is the correct place for this thread, but I think it is)

Hello, I was wondering, what do you guys think of the iOS app Jamup Pro XT? Are the amp-simulators close (Tone wise) to the amps they are based of off? Is the app relatively easy to learn? Have you tried any of the addons? If so, which, and what do you think of those?

I am asking this as I plan on purchasing the interface for iOS for this app, but, I havent found a good review, though, I have found many nice playthroughs (Ola, Jeff, Keith)