Just got the third coat of SG on my Jeep this weekend and it looks very good. People have been asking what "wax" I used. Each of the three coats were applied over the last few weekends as the Jeep is (now) a daily driver. It has seen rain and held up well. It has received rain that has dried on the vehicle and not a water spot one. I am a novice to detailing but in addition to the look, I really like the application of the twins. I done both as WOWO and had no problems as it was easy to do. I appreciate the lack of "powder" from the cheaper OTC items so I don't have to worry about staining the trim. As you might read, less is more for both. If you can see the AIO or SG, you are using too much. You will feel the smoothness of the SG as it goes on and let that guide you instead of looking for product to haze up. I am sure there are plenty of other quality products but you will not be disappointed with the Klasse twins.
BTW, it is a 2002 red Jeep with low miles and until recently was a garage queen taken out on sunny days only. The look is outstanding on the red paint.