I've had warranty work done quite a few times...
(Look at my mod list )
Mike Shaw hasn't been bad... Flatirons Subaru helped me out with a loose control arm even though I have upgraded springs, sways, and endlinks.
I purchased from Mike Shaw though... And I'd probably buy from them again... so I think that they're going to be more apt to help me than anyone else in a dire situation.
Mike Shaw and Flatirons are both Site sponsors on a local Forum... and Flatirons actually has an aftermarket parts dept that stocks a large amount of aftermarket parts (a former buddy and I went their in a pinch and got a radiator and hoses from them) and an online aftermarket parts store... They used to have an inhouse tuner (flatirons tuning) but rumor has it they were told by Subaru of America that it was a no-go. So Flatirons Tuning has their own location now.