We had a slight issue with packaging but not with customer service. When ours arrived, it was missing this cube thing you're supposed to assemble to roll for practice... I thought maybe I just misunderstood, but I asked and they said it should have been included and sent it to me right away (via pdf as I recall).
But nothing was damaged and the stuff was good quality.
It totally worked for us. This was the older version -- I think I remember that the newer version has ALL the times tables in it, whereas the original only focused on the harder ones (6 and up). Honestly, this makes more sense to me. I don't think we should be encouraging rote memorization -- only AFTER concept understanding is well in place -- and having stories even for the facts that are easy and quick to figure out is, to me, like saying they should be memorized only by rote as well, and don't bother trying to understand how it works first... Just doing the harder ones recognizes that even after you understand and CAN figure them out manually, it's faster to calculate when they're memorized, but while some almost memorize themselves, others are tricky.
This was several years ago and I still remember a few of the stories... mrs week and mrs snowman went for a drive and drove one mph over the speed limit. The two grade 1 classes played soccer and the score was 3 to 6. Brilliant concept. It worked exactly as described -- within an hour, using the method exactly as they instruct, my son had them all memorized.
I've kept the materials and definitely plan on using them, if needed, with my daughter when she's older.