I have been using Nanolex Spray Sealant now for a couple of months. It has become my go to LSP when a coating or other option is not specified. The application process could not be easier. It almost lays down like a coating, but it starts to evaporate really quickly. I typically use a microfiber applicator. You can literally lay this down on a car in about 10 minutes. The gloss enhancement is there. I cannot speak for durability, but if it gets 4-6 months, it will be even better. The cost of application is so low, that you really can do this every month or so, since it is so quick. Here is the link to grab a bottle from Phil at Detailer's Domain. https://www.detailersdomain.com/products/nanolex-spray-sealant And here's a couple of vehicles wearing it. HUMP
Just tried it myself today. It is rediculously slick! I have a long drive back to DC tomorrow in the rain, so I'm looking forward to seeing how it beads!