I've been using Audacity (for Mac, 1.3.7) for awhile now and don't find it terribly complicated to use, though I also do pretty simple stuff - label the tracks, export multiple as FLAC, do some basic EQing, fade ins/outs, and occasionally try and cut down between-song clapping or chatter. I have not tried, for example, something complex like a matrix mix, or more precise editing. Since this new Mac version can do the FLAC export itself, that has been a big plus over the less-great Windows version I used before.
I know Audition is the gold standard, but that is probably more than I need. Is there a particular advantage to either Sound Studio or Amadeus over Audacity?
I haven't used mac software, but I do use Wavelab on a PC. The main thing I found is that it can do *real time* effects. So, you can put some EQ, compression or whatever in, and play it in real time with that effect. You can do things like enable/disable that effect periodically (and with eyes closed) try to hear the difference. Audacity only works in batch mode, not realtime.
Another thing about Wavelab is the "montage" feature, where you can line up several tracks and do a mix of them. For example, line up soundboard, mics, and maybe a hat worn mic track too, and do a mix between them. Each track can have its own effects too. I think many other packages (protools, etc) have some similar capabilities, though the montage is the nicest for what we do, IMO.
I think there is a Linux program called "ardour" that does this (probably in "protools" style) but I have not bothered with this since I do my other audio stuff (cd writing, tracking, etc) on Windows anyway. Another Windows program worth exploring is a shareware package called "reaper". This uses a protools like interface as well. It is useful for both multitrack recording and mixing.
The main advantage of Audacity I would say is, aside from being free (!), that it has the same interface on Windows/ Mac/ Linux. This would be a great advantage if you want to train users on the software, then run it on multiple platforms.
In summary, no need to change your workflow, but it is useful to try other packages every now and then to be aware of what is out there.
Richard