The prices or so-so, not amazing deals to go nuts over, about the same as a regular home improvement store, maybe a TINY BIT less. The customer service is not good, you can stand around waiting for someone to answer a question forever and end up just breaking down and going to find someone in the store and walking them over to where you were standing and waiting.
I have bought and returned things from the Glendale location on 4 separate occasions within about a month's period for a kitchen remodel and every single time I am in line waiting at least 15 minutes, not because they are busy, or there are long lines, it just seems like they always have only 1 - 2 cashiers on duty at any given time and are very slow at returns/purchases.
The only time I would suggest coming here is if your tile or flooring contractor requires you to. You can get way better service at a standard home improvement store and I can't really see a price difference.