I have a 328d wagon now, so the balance of quality is much closer!
Both shops are cheaper than RRT for RBs. My buddy does not charge me much because I am in the midst of the install....
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2011 Mineral White M3 ZCP - Opticoat, Ventureshield, some CF, B&B exhaust, AFE Intake Vorsteiner VFF 101s Ohlins
2014 Mineral White 328d Xdrive Wagon - Opticoat, Ventureshield, B8s, H&R, Apex SM-10s Hawk Pads
2021 718 Cayman GT4 - Fire extinguiser, Neodyme GT3 Wheel Color