To be fair, Listen isn't an official google project, it's a 20% project, and the devs that started it probably just got bored with it, and/or busy.
http://groups.google.com/group/listen-discuss/browse_thread/...
http://groups.google.com/group/listen-discuss/browse_thread/...
I ended up buy DoggCatcher and I'm pretty happy with it. The UI is a little clunky and confusing at times, but it gets the job done and has the features I need. And, it works in all the areas that it should. It was $6.99 and I can say it was the best purchase for my phone.
[I am not affiliated with them in any way.]
I think Listen's bugginess would only be mildly irritating if more critical (and official) Google apps like Voice didn't have almost-dealbreakers cropping up so often.