I buy it in bulk ($8 for 4 cans) at Costco and absolutely love it. It lasts, even through rain. I get a couple weeks out of it. It doesn't turn tires brown either. When the shine is gone, the tires remain black and clean looking. Spray on, walk away. No messing with dirty tire applicators or tire gels. I use an old MF to wipe any drips off the wheel (which adds a nice gloss too!). I have 4 card board squares I roll the car on to when I spray it so I don't stain the driveway.
It's the only tire shine I use.