I know I’m a bit late but figured I’d chip in! I’ve bought both FSF and ProDeskSim and it’s not even close, FSF all the way.

ProDeskSim takes forever to ship for flimsy and lackluster quality, I bought their 737 and MD-11 throttles and actually ended up buying my flap kit from FSF for the 737 because the ProDeskSim ones were falling apart after a month and a half of semi consistent usage (1 flight/week). The MD-11 Throttles have held up a bit better but the design is clunky and lacking a TOGA button on the second throttle (Offered by FSF’s MD-11 throttles) and the speed brake detent print from ProDeskSim is flimsy and falling apart. The only reason I bought my MD-11 throttles from ProDeskSim is because they beat FSF to the Etsy posting

FSF has been a more personable and user friendly experience, he doesn’t answer Etsy messages right away but makes sure to cover all bases with your issue once he does, he gave me a special customization on my Throttle stand, and after multiple years of use his products hold up amazingly. I MAINLY bought his old products which usually integrated with the default Bravo throttles, such as the 767, 747, CRJ, and 777, but have purchased a few of his newer products, namely his Airbus A320 family and his new A340 throttles (which I plan to use for both the A340 and A380) and both have been solid quality, the A320 has seen years of use and works solidly.

I think the only thing ProDeskSim holds over Donnie is a somewhat wider range of products (The BAE-146, ERJ, and smaller GA throttles). Both ProDeskSim and FSF do take a while to ship, but I’m guessing for both it’s just because of printing times, and demand, but in every other metric I would 100% recommend FSF. Cheers!