this is THE fastest bit torrent client i have used, by far. sadly, it has become somewhat unstable over time. my main issues with it are:

1) if i run out of disk space, transmission will eventually crash. if i clear disk space and re-launch it, many torrents seem to have "forgotten" how much was already downloaded, wasting a lot of time. to make matters worse, i downloaded at least one torrent which ended up being completely corrupt. it was mp3 files, and i ended up with bits of various files scrambled up. this was after several crashes of transmission, at least one being from running out of disk space.

2) if transmission crashes, it often "forgets" what torrents it was downloading and/or seeding, and comes back with a very partial list. last night i lost power twice, and now my torrent list is partial and i am faced with lots of work to try to rebuild it.

3) if transmission crashes and "forgets" some torrents, and i have selected "copy torrents to the support folder," there is no way to go to that folder and re-load the torrents, since transmission copies them into its own proprietary format, which even transmission can't read if it has "forgotten" the torrent!!! and of course i only discovered this after choosing "trash original torrent files" in the preferences, which meant trying to track down a ton of torrents from different sites.

this is not meant as a negative review, especially since some of this (lack of disk space issue) is at least partially operator error. however, it would be great to see transmission handle crashes more gracefully.

it's still my favorite client by far, due to its speed and simple, uncluttered interface. i am writing this simply in the hopes that these issues will be recognized and addressed.