IMO, Backe will be one of the best #4 SP's this year and will probably be a very capable #3 man once one of Clemens, Oswalt or Pettite goes down. He stood up well to the pressure last year and wasn't awed by the big leagues the way most late season callups are. Coaches have said he has been studying his game tapes all winter.
Also, he is a Galveston boy I think, so a bit of a hometown hero down there. Hopefully, they don't build his head up too much.
I won't comment on whether the trade is good for ya or not, but even if you're not high on him but the trade makes sense for ya overall, at least take em and come July he'll have grabbed some headlines and I'd bet he'll be good trade bait to get someone you might really want.