Teaching Textbooks?

Our local Homeschool Conference is coming up soon, and I have been trying to plan out what I would like to buy. Math is a difficult subject for Peanut and I haven't really found anything that works really well for us. Teaching Textbooks will be a vendor there again, and after careful review of their website and sample pages, I think we are going to go with them. Does anyone use them? I would love to hear what you think.