What qualities do you look for in an LFS?

[michika]

I just want to know what criteria everyone uses (subconsciously or not) to determine what a good LFS is? What are really good qualities and what are some of the drawbacks.

I'm not looking for flaming or anything, just general comments about what it is that people like about their favorites, and what people don't like?

For example I like personal service, good selection, knowledgable help, etc. What does everyone else look for?