The Hotz mats seem like a good deal when ordering what should I be aware of?
1) Hotz seems to have a tendency to run their orders in "batches" (i.e. they wait until they have some number of orders and then do printing of those orders). this can lead to some annoyingly long wait times. They say 4-6 weeks but I've seen it go as long as 8 weeks, or as few as two weeks.
2) They are shipping from Canada, so make sure to note their shipping costs.
3) Getting the mats folded and shipped is fine; they bounce back quickly from the folding process. Heck, I stored one not neatly folded in a storage box for a few months after Gencon a few years ago and it bounced right back.