In the past I've used both Meguiar's and Mothers. Both make excellent products. IMO
About 15-18 months ago I started using Adams products. They too make excellent products.
I like them more than Mother's and Meguiar's. That's just my opinion though.
You would have to try their products and see for yourself.
I will say some on their stuff seems a bit on the pricy side to me.
Again, you judge for yourself.