I purchased the Non-Slip Paint and Clear Concrete Sealer. I asked a lot of questions prior to the purchase, along with doing my own research. My driveway is 25 degree slope, so very steep and I wanted to be sure I got a product that would prevent slip, not increase it.
Overall the product is very good and did the job it said, I have shared comments and tips below based on my experience. My driveway is 270sqm and as noted on a 25 degree slope. This made application of both products difficult. The Non-Slip product is thick, even when watered down 5% per instructions, you have to roll it on. I found that one coat was insufficient, as I had roller marks all over the drive, despite keeping a wet edge and having many years experience in painting / rolling. On the second coat the finish looked much better. It took me 7 hours to do the first coat and 5 hours to do the second coat.
The Concrete Sealer is much easier to apply, per instructions you can pour it on and roll it out. Do not pour too much, as i accidentally did on one occasion. The product is thin in the drum but thickens on contact with concrete. You want thin coats or else it would be very slippery when wet. The product is very sticky when poured, you cannot walk on it at all. I accidentally did this when I poured too much out on an occasion and got stuck to the drive, which resulted in me pulling up the paint off the drive as well. The product dries very quickly, I applied it in the sun in the morning and it went on great. I then stupidly applied a second coat (that's not the stupid part), in the afternoon when it was over 25 degrees, the product stuck to the concrete on contact and left streaks all over it. They have softened now and can only really be seen on very hot days, but still the first coat looked amazing, the second coat looked amateurish.
As I said overall great products, when applied with patience and in the right weather conditions. Wear wise the drive is doing well, I do not slip on the drive, be it walking or in the car, even in heavy rain. Unfortunately big vans / trucks do struggle and even though they get up the drive, they have removed paint in the process, resulting in me having to reapply and do the process again in those areas. This has only happened in very heavy rain, in normal conditions the driveway has provided more than enough grip for any type of vehicle.