trojanman,
Yes, they are a bunch of ex-Lexus techs and I bring my LX470 there for service... they do specialize in Lexus vehicles. But, I have seen all types of vehicles in their shop... in fact most of the time when I go there the garage looks like something out of one of those Import Tuner magazines.
They did my Eibach springs install (did a great job) and I plan on bringing my FX there for routine service items. With an appointment they will give you a
loaner car (unheard of to me for a non dealer) and while work is being done they give me updates via
EMAIL as to progress (a first in my book).
I really wanted to find a non-dealer that would spend the time to get to know me and my car, what I wanted to do and help guide me thru the mod process, I think they fit that mold perfectly. The last time I was there I casually mentioned about chroming my wheels and tinting my windows and the next day he emailed me with the news that they had someone already lined up for both tasks for me whenever I was ready.
Here's a link to my Eibach install thread, some questions you are thinking of have probably been asked...
http://www.infinitifx.org/phpBB2/viewtopic.php?t=3235