I have taken several pieces of clothing to Express as it is near my home. As long as I mark the clothing at home before I drop it off to be altered, it comes out adequately complete. However, everything that I have had them mark before altering has come out Way Too Short (includes several pairs of pants and a suit jacket that needed the sleeves shortened). It always looks great when they mark it, but the final product is never right. I have even taken the time to explain previous work, and attempted to have the individual leave more fabric at the time of marking to ensure that the same thing would not happen. Unfortunately, that hasn't worked either! I don't feel like I should have to mark my clothing with pins on my own just to get it done correctly, particularly for the price that is charged at Express. Also, the men that work there are very nice, but the women are quite rude. You would likely be happier with another alterations specialist.
Pros: Can have alterations done quickly.
Cons: Clothing is completed in a less-than-satisfactory manner.