I have a bad habit of buying clothes without trying them on. I just kind of hold up an item, determine it looks "about right" and call it good. This is really not the best way to do things, I know. As an example, I fell in love with a fantastic pair of jeans... last July. It wasn't until I got them home that I realized that while they were the correct size, they were made for someone 6' tall (which I am definitely not). Promptly exiled to the back of the closet. I didn't get any taller in the past half year (darn!) and was about to give them away when I learned that they could be fixed to fit 5'5" me. Sweet!
I can see why Fifth Avenue Alterations has so many 5-star reviews. I brought in my amazon-girl jeans and the owner took a lot of time to ensure that they were pinned to exactly the correct length, having me stand both in heels and without shoes. I like attention to detail! She explained how the existing distressed hem would be cut and re-attached, so the bottom of the jeans wouldn't have that tacky folded-over look once they were finished (I never knew that could be done).
$20, done in a week and they look great! I am very happy - these jeans are going to be my new favorites!