I just went from a triple with a 12-25 to a compact with a 12-27. I soon found out that I miss the half a gear on the high and on the low end so I went with a 11-28. I love it . I much prefer the compact over the triple. With the triple, I found myself shifting the front derailleur a lot. With the compact and the 11-28, I can do a lot in either the 34 or the 50 and only shift once in a while.