The Thing About reaper it may be simple but it works, and from what Ive only heard that it is not CPU intensive, requires no dongles, specific hardware, compatible with all sorts of shit. Most impressive is the reputaion of their customer support. i heard that someone had a complaint of a lack of a certain feature..posted on the forum and hours later there was an update.. my friend uses that to track and mix his beats to via MPC4000 and Miko and i think he may record vocals as well...then mixes in pro-tools. He had an HD system fairly recently, but wasnt really using all of it.