Renoise is great. I record more in Renoise than I do in Reaper lol. Try out the demo, it gives you everything except exporting to .wav (Honestly, you can get around this if you really want to, but I suggest supporting the dev team. They're a great group).
I used the demo of Renoise from about 2007 to 2011 I think, then I bought a license. Worth every penny. I love the way their license system works compared to other DAWs (I respect Reaper's pricing model, too. Very fair). You buy a license and you're good from the current version up to the next full version. So right now you'd buy at version 3.1.x and be good until 4.1.x and that takes a long, long time. I bought at 2.9 I think and it's been nearly 5 years now. Even in that time there have been plenty of changes and updates, but they don't go up the version numbers too fast unless there's a big, big change in features.