I have been using the Kanttori´s Throttle for a while now. It works as intended and any problem I had with it was solved VERY quickly by Kanttori. For IL-2 it is a very good throttle. Set it up by instructions on the site and you are good to go. Mapping was easy and learnng Joystick Gremlin ain´t too hard. In DCS it works without using Joystick Gremlin, but for modern jets I would need a bit different throttle. Not that this one would not work, but there are some things one could use like POV hats etc. But I fly mainly WW2 planes, so no real issue. Quality is solid and if you want to replace any of the switches they are easy to find from any electronics hobby store.
I think one of squad mates uses the Virpil throttle. He has no issues with it either. So in the end it boils down to personal preference. I hope this helped.