Looking to buy some of this for my meteor grey VRS...it comes in light or dark what variant would meteor grey come under?

Any one used this and can comment on results?

Both are OK to use. Marketing gimmick.

Some say its a bit hard to buff. Its a good sealer.

I would just use the light version. Have used on my candy white and nothing (i've used before) beads like this stuff. Well worth the money and paint stripping smell it will leave you with. Some consider it a sealer so suggest waxing then applying fusso. Can be difficult to buff but jst don't leave on too long. Worst issue is when washing your car you can't get any water to sit on it as it just falls off i.e. need loads of suds.