I was using Audacity for quick Normalization and other edits to my samples, but I've since learned I can do that inside OpenMPT (and save those edits back to file). Audacity does lack any form of "midi-esque" sequencing though, which is how I primarily work.

Having said that, Audacity has come a long with VST support, etc, since Muse Group got involved. But unfortunately, they also allegedly enforced data tracking in a way that didn't respect the community that had supported it up until then. I actually don't know what the latest is (someone else feel free to reply with the update), but it hasn't been crucial enough in my workflow to keep up with.

audacity isn't much more than an audio editor (a good one at that), nowhere the capability of a daw