I personally never liked it, My dad uses that stuff with his truck It comes out really nice I just don't like how its put on and off. If you get what im saying.
p21s makes a complete car care kit that's better than turtle wax crap. it's not the absolute best-of-the-best high end stuff out there, but it's great quality and the price isn't outrageous. turtle wax is dookie, imo.
Look into Klasse (German). I highly recommend it, it's a little pricey but so worth it. You can google pictures to see results or you can check out my build thread to see pics.
the quality of the products you use on your car really makes a difference. my black bimmer had a lot of swirl marks and scratches when i got it, but with the right products and methods, my paint looks amazing now. my detailer uses only the good stuff on it (i like to read up to make sure i'm getting my money's worth lol). the last products were from the wolfgang and menzerna line. that's the higher end stuff and up there as far as quality goes. http://www.wolfgangcarcare.com/
Naa there are still fine scratches but i don't have a heavier polish. I also used a buffer ball with a drill. Ill find it now an take a picture.