All I can say is, for the love of God, don't
ask this question on the Sportsmobile forum website itself.
I got reamed over there a year ago when I asked the same thing & dared mention people who had less than an ecstatic experience with the company. They are True Believers over there...
From what I gather, the Calif. location is the most back-logged and seemed
to have the most complaints. The Indiana location got the most kudos, tho' they appear to be the most old-school when it comes to features. Austin, TX had the fewest number of reviews, but I don't recall hearing anything esp. bad about them.