I love this half price. It's not as big as other locations but still has a good selection. I come in pretty often to see what new items have shown up and there are always several things in the clearance section that catch my eye. I also like how they organize and label shelves by topic so you can easily find what you may be interested in.
The staff here have always been friendly to me, from the buy counter to the cashiers. They are always willing to answer questions and help too.
I've sold to them several times and never had any issues. Usually I don't have any price point in mind though and am really just looking to get rid of stuff I don't read/watch anymore. I'll take whatever they offer, and usually they'll donate anything they don't want to buy. If you are particular about a price you are looking for, then maybe this isn't the first place to check, but I don't know details on the pricing model.
Overall a great place to check for books, movies or music!