I have several JaxWax products that I have used along with others for the past 8 years. The weather here in MT is not the best for detailing thus causing me to rely more on JaxWax, in particular Hawaiian Shine. I do not have a garage since l am no longer in LV, but it can be used in full sun and on hot surfaces. I have used it as a waterless wash where it has excelled. As a wax as you dry, l have not found better. I have not used it as a stand alone lsp, but it does appear to be durable. It does leave a pleasing, high gloss shine.
The Liquid Carnauba Paste Wax is solvent rich and can be used in full, hot sun. I waxed my black 300 SRT8 in direct 109 degree Vegas sun years ago with this wax and it performed perfectly. This was not to happen again, but I had to see for myself.
This wax appears to be durable for at least 6-8 weeks, leaves a high gloss finish and is easy on and off.