Considering it was made by several of the original Intellivision team members to my knowledge, it's pretty darned reputable. It's a very small operation though, so delays are to be expected, although I would think you should be able to get hold of someone.
I recently ordered a t-shirt from id Software, and it took 2 months to arrive with no real communication. But they are indeed what I would call reputable. Just a small operation.