Hail damage all over the bonnet, can this really be fixed without paint?

[dominictoretto]

We had that freak hailstorm a while back and I ended up with about a dozen small dents across the bonnet and roof, nothing huge but enough that it looks like a golf ball in certain light. I assumed it meant a full respray but someone told me Dent repair without paint at Exotic Auto Services can handle hail damage. I'm sceptical though, because that's a lot of dents in one area. Has anyone had hail damage repaired this way and did it come out completely smooth or could you still see faint marks? Also, roughly how many dents can they do in a day, since I've got quite a few and I don't want the car gone for a week. Insurance wanted to write it off as cosmetic but it bothers me every time I look at it.