I went to FeiFei the other day and the shop does look really nice and the staff seems very competent.
What surprised me was the price - 1500rmb for a suit. I thing that is well over the top! If you compare to Susan's Tailor in Yashow (I have had to very nice suits made there for 700rmb each).

Forgot to say that the prices in both cases was for Australian cashmere. Even though FeiFei might be slightly better it still doesn't justify that you are to pay more than the double the price of Susan's tailor.

Is it me or has the prices in FeiFei went up quite a lot??