I just applied some of the Turtle Wax PS QD spray to my 3-day-old application of Turtle Wax PUG paste wax. The smell of the two products is quite similar and not unpleasant. I can only compare this to the Meguiar's Quick Detail spray. The TW spray comes out in a stream rather than a mist like the Meguiar's QD spray. Otherwise the spreading and removal is approximately the same. I used my Viking MF drying towel as I love it for buffing purposes. I only had one halogen light in the garage to work with, but it seems that the gloss and reflectivity improved. I'll be able to compare the QD'd side to the unQD'd side of one of the doors in the daylight tomorrow.
edit: I forgot to mention something important. The TW QD spray claims to hide small swirl marks. My paint has a LOT of swirl marks and it does seem to diminish that scratched look slightly.
edit: I forgot to mention something important. The TW QD spray claims to hide small swirl marks. My paint has a LOT of swirl marks and it does seem to diminish that scratched look slightly.