I ordered the UAII kit from Scott a couple weeks ago. Received it last Thursday and put it up this weekend. I am very happy with the cabinet. They seem to do great work over there and I would highly recommend them. I haven't had a lot of contact with him as it was a very straightforward order, so I can not really comment on that aspect. When I did send emails though, I received a very prompt and courteous reply.
How many days between the day you ordered and the day you received it? How long did it take for you to build?
Took 9 days to receive (I'm in Phoenix, AZ). I spent about 20 minutes cleaning all the dust and foam from the panels, then about 3 hours build time going very slowly and reading the directions carefully so as not to screw up (includes another 15-20 minutes verifying the parts list). It was really easy, but you need a second person to get the top on. Two people during the whole process could probably do it in an hour if they rushed, but I think between 2 and 3 hours is a good time to expect.
If you've ever bought a desk at Ikea or something, it's very similar to that.
[edit] Wanted to clarify that it was 9 days from when I ordered. Shipped 5 days after I ordered and arrived 4 days after shipping. It was a very reasonable time even though I'm incredibly impatient.