My advice is to learn how to make these simple adjustments yourself. I got so sick of bringing my bike somewhere, waiting for them to work on it, picking it up, and paying good money only to have these kinds of problems. Just pick up a good book (like Zinn's road bike maintenance) and use web resources like the park tool website and sheldon brown website. I will tell you that in my hands the compact derailleurs worked better than the ultegra since the ultegra is designed to go from a 52 to 42 or 39 not a 48 to 34. For me, an old mountain derailleur also designed for smaller rings worked better, but I also had to deal with the elliptical shape.