I personally wouldn’t fit AlloyGators.
I’m not sure if it’s AlloyGators or a similar product, but there’s one manufacturer of this type of alloy wheel protection product where I can recall they state they’re not suitable for diamond cut alloys. Also, with the method of fixing these to the wheels (hammering on, albeit with a ‘soft’ hammer), I’d envisage there may be a risk of damaging the lacquered surface around the edge of the alloy and if this happens, white worm corrosion could breed undetected under the AlloyGator. This could also happen if grit gets between the AlloyGator and the wheel, and the grit damages the lacquer on the alloy, allowing moisture to get under the lacquer. I don’t know if I’d trust some tyre fitters to remove an AlloyGator and then refit it without causing damage when fitting new tyres either.
Additionally, AlloyGators can work loose and cause significant damage to the car’s bodywork when the loose end slaps against the adjacent body panels with each rotation of the wheel. Check out the picture of the black VW Polo wing and door near the end of the discussion thread at the link below;