I have used a pair. I have on loan to me a pair of TT's and TL's.

I have not used the Studio Projects stuff. I tried to get some for review for a shootout that was conducted for another website article, but was unsuccessful. There are no dealers in my state either.

SP is going to go after the ADK mic line with near exact products soon. I like the ADK's. Like any other mic, they are an option. I thought that the Area51 mics were pretty darn good for the money, the TT's and the TL's are great. I guess it just depends on what you are after. The whole ADK line is about color. If you want stark accuracy you will need to spend more money elsewhere.

Either way, you get great service from the importers, and you won't be out a whole bunch of cash.