Works Great!! Had a minor insallation issue though.
2005 MINI Cooper
I bought this wondering "Why does this cost so much?", but I soon found that this adapter is awesome. I saves a ton of time and effort in installation and really does work great thanks to the auto-detection. The issue I had was with my newer Kenwood showing as a JVC. The documentation Crutchfield sent clearly stated that this is a known issue and they bolded the text that a 10-12K ohm resistor is needed for my radio during the programming phase. The only problem I had was that the document said the resistor was included, but I couldn't find it in the kit. A quick trip to the store sorted that out and my radio was properly detected in a snap.
Pros: Easy to install, good LED feedback, and works great.
Cons: The 10K ohm resistor either 1) wasn't in the package or 2) I lost it as I opened it (more likely). This was no fault of Crutchfield and was easily resolved.