I have got Dodo's "Need for Speed" not a bad AIO but i have not used others to compare.

On my black Golf it made a noticable improvement and the swirls were deffinatly reduced, not sure if they were filled or removed as they were only very light as the car had been machined polished 12months before and i try to keep it looking the best i can.

With the Dodo "NFS" i was getting about a months worth of water beading/protection before it would need doing again