I was working for excel and to be honest I wouldn't go there. The crew you work with are great but the office staff are evil and nasty. If you can get by with no contact from the office then cool.
I now work from another airline and very happy there. If you do go to excel have fun but be careful. Also beware of the problems they have with getting the security ID's for you to be able to fly. Excel seem to have major problems with doing this and really mess the applications up that go to BAA.
Anyway have fun flying all