We sell quite a bit of it at work, mostly to older customers, the haircolor seems pretty good for gray coverage. I know they make some hair conditioning treatments and a kholesteral, but I don't think they make a heat protectant. I mean they might, but we don't sell it.
My colorist uses Wella to color my hair and she recommends the shampoo and conditioner to me all of the time to help maintain my color. I have tried them and they work pretty good but I mostly stick to my Paul Mitchell and Matrix Biolage.