i've been using the Dunking Biscuit kit for a little while now, made use of the snowfoam, shampoo, polish and sealant.
Im finding shampoo generally seems pretty generic, it as good as the Obsession Wax and Meguairs NXT nice scent and good lather 8/10
The snow foam is good, clings well but also dissolves and drips off the car which drags the dirt off. It also doesnt seem to take too much of the protection off, my previous marker Obsession Wax Snow Foam was quite strong and seemed to take the protection off more quickly. DB 8/10
The polish is a reasonable product, it does a job and lifted the paint on a car i detailed for a fried. I've used better. 5/10.
The sealant is good, easy to apply (spray on rinse off) and the results are good, tops up the existing protection and gives a nice deep finish, also gives really good beading and water repellent properties. Probably the best topup sealant ive used 9/10.
More still to test but so far its been pretty good.