I had Gtechniq Crystal serum applied topped up with exo and 4 months on it comes up like new when washed and is silky smooth, the wash mitt just glides over it, not a swirl mark in sight and although i do snowfoam first most of the time, i only use one bucket when washing which for some is sacrilidge.
I had the front bumper covered in expel film, the only gripe i have is it comes in a kit form and there are small gaps (a few mm) where the film changes direction due to the shape of the bumper, but other than that you have to get up very close to know its on there, wish i’d had the underneath of the sills and rear bumper done as its stone chip city under there now.