I've bought a FPV quadcopter (in real life) and when I flew it for the first time, I hardly managed to hover. 

I've tried every FPV simulator which had a free demo and fell in love with "FPV Freerider Recharched". It has the most realistic feeling!

"FPV Freerider Recharched" helped me to learn flying so well, so that I havn't crashed my real quadcoter ...yet ;)

By the way, this simulator runs pretty smooth on my quite old laptop, except "Forest", where I have to lower the qualitiy dramaticly. So if "Desert"(the map from the demo version)  runs smooth at highest quality settings, this doesn't mean that every map runs exactly as smooth. If "Desert" doesn't run smooth at all, then consider buying "FPV Freerider" instead.

I'm looking forward to the release of the map editor!

Aaand if there is some way to give you a tip for the update (when it's done), then please let me know! I've only found "buy an extra copy" on itch... which would be a bit to much as a tip... ;)