They seemed like good quality and great designs, but I could never swing $30-50 for a glorified Micromachine to put on my shelf. I'm jelly of people who have them, though!
They are generally really good quality, especially the XL ships. Just judging by the ones I have though, I'm not sure about the others. I can definitely understand them not being worth the money to everyone though. I did get a few of the smaller ships, but I wasn't as impressed with them. They generally feel and look cheaper, there's just not as much detail.
I got an email from them on this. Sad that they're not doing it anymore, but I was able to get all of the ships I really wanted! I would still like the 1701-A, 1701-C, and DS9 all in XL, but I just can't justify the cost right now.