Hey, I saw the post on the wiki requesting feedback, and so I thought I'd offer my experiences with it.
First of all let me say this is a really cool idea. I like the way it works, by reading the gamelog. I think that's really creative. And I think it has a lot of potential. Those are kind of disclaimers, because I wasn't really into the program, even though I think it's really cool.
I think that the program is cool, but I found the soundpack problematic. For one thing, there were sounds-- multiple sounds, frequently-- for banal activity. This meant that, for instance, I couldn't listen to music at the same time, or if I did, I would be using soundsense to no purpose. The variety of sounds makes sense if you're trying to make a soundscape for DF, but I was hoping that I could get an auditory cue for important events so that I could easily do other things and let DF run, and for that, the variety of sounds were a problem, because I didn't necessarily know what each sound referred to, and it didn't seem like I was going to learn that with so many different sounds.
I thought about editing the sound pack, and looked into it, but what I found were about a bazillion sounds. Even deleting the ones that I didn't want to hear seemed like it wouldn't be worth the trouble. I also didn't notice any parses along the lines of "The [any dwarven profession] gives into pain!" and I wasn't sure if that was possible with the setup-- handling events differently based on subject/object. For instance, I would love to know when one of my dwarves is injured, but I don't want to know every time that a goblin is injured. I might want to know when a goblin swings at a dwarf, but not want to know when a dwarf swings at a dwarf (as it's likely to just be sparring-- and I can pause on berserk anyways). I probably care a lot more about doors being destroyed, when they're not being destroyed by a troll, and I don't care if it's a hatch or a door.
It seems like there's an effort to making a complete sound file, but I think that maybe if that sound file was LESS complete, I would have gotten more out of soundsense. If that sound pack had been more abstract, that would have improved my experience even more-- it's the difference between my computer dinging and saying, "You've got mail!" and I prefer the former. If there are any earlier versions of soundpacks, with less variety, with more focus on important events, I think it'd be cool if you offered them for download, instead of just the megapack.
I hope this is taken in the right way-- I don't mean to suggest you have to listen to me and make soundsense the way I want it to be. That would be really presumptuous of me. I appreciate the existence of soundsense for the sake of the people that enjoy it, and I appreciate everybody going to all this work to be helpful to the DF community. I'm just offering this feedback in case it's useful to anyone somehow.