Bought a skid of travertine tile and the pricing was incorrect, fought with them for a while but they actually came through with a refund of the difference. Still, the tile was inconsistent (about 25% was unusable as a full tile, used for off-cuts).
Bought a second skid of filled travertine, 360 SF and it was about 3 distinct different colors (dark brown, orangey brown, light creamy). Thankfully it was about twice as much as I really needed because there was about 30% that was totally unusable. I was able to use one shade in the shower, one for the rest of the bathroom and one shade for the powder room downstairs.
I can't stress this enough, bring a calculator with you, figure out the math for yourself(price & square footage etc.), do not assume their in-store signs are correct. Really inspect the skid you are taking to confirm the product is consistent with your expectations.
Other than that, the prices are really good if you feel you have received what you expected. Their prices on sealer was pretty good as well.
You probably won't find a better place for tiles, in terms of price, than this place. We purchased marble (24" x 24") travertine tiles at about 30 - 50% less than comparable stores. However, their customer service is very disappointing. They are not accomodating nor are they considerate of the customer, especially if THEY get the order incorrect. Perhaps they don't have to worry about their customer service because they know they have the cheapest prices. Beware of their non-return, and/or non-exchange policies. Good luck.