I have both, leather and synthetic gun belts. I find synthetic ones to be more functional and comfortable than leather gun belts. For one, they’re usually thinner than quality gun belts (my Mean Gene Leather belt is a quality work of art but slightly over 1/4” thick). So for me, they’re easier to fit through pant belt loops and holster belt loops. But their greatest functionality is their infinite adjustment ability. Unlike leather belts with holes 3/4” to 1” apart, I can adjust mine by millimeters if need be. The main complaint I have about synthetic, nylon-type belts are that they look too “tactical” for my tastes and some can be a bit of a pain to put on and adjust with Cobra buckles and velcro, for instance, but the latter is really a minor issue for me. I usually wear my synthetic belts for casual wear with an untucked shirt, so the tactical, ninja-mall wannabe look becomes moot.
With that said, here’s my opinion of the various synthetic belts I’ve collected so far:
Klik Belt 1.5” 2-ply with Cobra buckle - By far my favorite and most comfortable. Although it uses a Cobra buckle, it’s the easiest for me to put on and take off. I’ve had it for 2 to 3 years and it still looks new with no fraying, wear or sagging. Fantastic belt, but more expensive than the one in your Amazon link.
I also have a 1.75” “Duty” Klik belt that I used in a 10K Run-n-Gun biathlon. It’s stiffer than their 1.5” 2-ply belt, and very durable. I dragged it through mud and scraped it along two lengthy corrugated steel culverts during the belly crawl obstacles. My pants got torn up, but it held up like a champ. I washed it afterwards and looks good as new. Kind of stiff, though.
https://www.klikbelts.com/
Volund Gearworks 1.5” Aesir EDC belt - Close 2nd and almost a tie with my Klik Belt as my favorite synthetic. The material is different from the nylon-type material of the Klik belt. I think it’s scuba diving webbing material? Seems like many synthetic gun belts are now going with this material. It’s slightly thicker but less stiff than the Klik belt. It also uses velcro to better attach the loose end. I have a love/hate relationship with velcro. While it definitely helps secure the loose end so that it’s not flapping around, it also attracts fuzz, hair and lint, is a bit noisy when unlatching and wears off over time. Volund offers more webbing and buckle colors and a g-hook buckle that I haven’t tried yet.
http://store.volundgearworks.com/
Liberty Gun Belts - Great webbing and thread color selection. My 1.5” No velcro EDC Liberty Gun belt with 1” Cobra Buckle is my coolest looking one (and admittedly more tactical looking, too). It seems to be made of the same, softer scuba webbing material as the Volund one. For me at least, it’s also a bit more cumbersome to put on and take off than my Klik and Volund belts, despite the narrower 1” Cobra buckle.
https://libertygunbelts.com/
Uncle Mike’s 1.5” “Reinforced Instructor’s” belt - Least expensive of my collection, but it works well enough to support a holstered gun. I’ve abused this belt to no end the past couple years, and it’s still holding up. I’ve even used it to tie off and drag and pull some heavy weights across the floor to simulate drag pulls. My only complaints are that the buckle is kind of heavy and the velcro sometimes manages to scratch the skin along my abdomen when sitting down.
https://www.amazon.com/gp/aw/d/B001CNXRTK/ref=ya_aw_od_pi?ie=UTF8&psc=1
Hope this helps!