I recently moved to Hawaii. The sun is definitely intense along with the salt air and RED-dirt. I decided to try TurtleWax ICE after my silver Tacoma 2001, Double Cab and been shipped from the West coast.
The wax comes in a very thin, oily liquid, clear and lighter than Mother's NTX. You do not have to rub as hard, nor, polish. The shine is outstanding and you get a very nice and even "Beading" of water when the truck is wet (It rains sporadically, morning, mid-day and sometimes throughout the day).
I also picked up some of their car wash, quick detailer and interior care products. All work as promised. The great thing about the interior care is that it is a 1-stop shop. It can even be used on the upholstery for minor stains. It works.
For water spots, I still use 3M clear coat safe rubbing compound (Grey bottle) on a terry cloth that is damp and diluted. This removes all blemishes, even on chromed plastic, then I coat with the ICE wax. The 3M product is also great for removing the oxidization on your headlights.
Overall, I am very pleased with the TurtleWax ICE products. Traditionally, I have been a Mother's guy. My dad has a 32 Ford Hi-boy with flames, which are hand outlined in electric blue. This stuff is deceivingly easy to apply and polish, and so far, appears to be working as promised.