Only the highest recommendations,,,,,I just saw a poor ole SMG M3 Steel Grey at my dealer that can only be described as awful. No way it was done well. I will have a Titanium X5 coming in and want to go with Xpel or other product but only if the installer is A+++.....Philly, Northern Jersey, Northern MD or Eastern PA area would work....I'll travel to get it done right. TIA