If anything, LMMS has the rough edges. The interface lacks polish and consistency. There are some awkward things about using it (why do I have to make a blank bar before I copy and paste a bar into it?). And I've noticed some glitchy behavior - for instance, I just made a ZynAddSubFX patch that sounded different as a plugin in LMMS than when I used it in Zyn's own application. Strange behavior like that, but fortunately it's rare.
But all that considered, LMMS is still great, and I appreciate the work it's authors put into it. I don't think of it as a daw; more of a sequencer. But if your music is 100% digital synths and samples, it serves all your needs.
Right now I'm using: LMMS (sequencer), Ardour (daw), JAMin (mastering suite), and Audacity (swiss army knife). I like Reaper. I've used ableton live many times, and I still don't get it - I guess the workflow is optimized for live mixing? I found it less than ideal for recording in a studio.