Hi there. I have not been on it too long but here's my experience so far...
1) did imuran work for you?---I can't tell yet. I've been on it 3 1/2 weeks and things have most definitely improved but I am also on Prednisone so I'm thinking the improvement is most likely from the Pred.
2) how long did it take to work?---see #1
3) how long have you been on imuran?---see #1
4) did you develop any bad side effects?---No side effects.
5) do you plan on taking it for life?---I plan on taking it as long as it maintains remission and I don't have other complications from it.
Best of luck!