I am more impressed with each visit.
They have a fantastic selection of discs and accessories. They are really knowledgable folks and have a great lost and found service. It looks like they update their lost and found list daily.
They also have s bunch of used discs, which is a great way to try out a new type of plastic or get an already-beaten-in disc or even just get something cheap to throw over water.
I recently played in the Trilogy Challenge and the latest Ace Race. They put a ton of work into these events to make sure they go smoothly, and make sure everyone has a great time.
They are a great resource for beginners and veterans alike.