I always use meg's, been doing so for about 25 years, seen many and tried many other products,they come and go claiming to be the best since sliced bread but meg's offer many different products for different situations they don't claim to have one wonder product and the results i would compare to any other product on the market. So i guess i like meg's and yes i would never recomend you do any type of detailing in the sun period to much of a risk to do damage to the paint even with PB's.For best results with any products do not use in direct sunlight.