Do most of my own fluids, but everything else goes to my Lexus dealer, who is top rated. That said I've got a killer relation with my Service Advisor and also use the same Tech for everything. I've even dropped a few dollars on the Tech when I know he was taking a hit on a warranty repair labor rate.
Loaner car and the ability of the Service Advisor to do a bit more for you in a bind is key, plus they see lots of LXs; can't say the same for Toyota. Then again, if you know your Toyota Tech is LC experienced and can get him every time, the labor rate is usually lower.
If I lived near Christo or other areas, like SLC, with good independent LC shops, I'd most likely go there out of warranty.