I had the 500's with upgraded swift springs. I've read more accounts of regretting lesser coilovers (Fortune Auto, BC, etc) than the nicer Ohlins or KWs, but at least a small portion of that is wondering how much nicer the experience would be with an extra $500 (or $1k, or $2k)
I had a set of Fortune Auto's when I owned a Focus RS. Wasn't too impressed with the performance daily driving on rough streets. This is coming from the notoriously stiff stock suspension.
Customer service is great though
Factory tint is pretty basic and serves more to increase privacy over reducing heat. The darker glass absorbs more of the solar energy and radiates some of it outward, but rarely uses the technology in modern (ceramic) window films.
Modern films are night and day for heat rejection. You can...
Risky move having your friends install. PPF (and wrap and tint) can be almost perfect if they're applied in a clean environment with good surface prep and handling techniques. You will probably have one or two pieces of debris on large complex panels, but smaller ones like fenders should be...