The routing is not as flexible as Reaper. Having said that, the only problem I had with that, was when I wanted to record the midi output of MidiGuitar direct from an audio to a midi track. Support gave me a workround so that was ok. It looks a bit old fashioned, and some of the more obscure functions are not immediately apparent, but it is rock solid, never a crash, and support is very helpful. To get an idea of the recordings done with MTS check out the forum, for example http://www.multitrackstudio.com/forum/viewtopic.php?f=2&t=2349
They have free lifelong updates now as well.
But you wanted to hear the negatives smile


Chris