It's a rather good cheat, to say the least.
The resource ESP and fishing bot feature helps a fair bit in PvE, together with mob ESP so you can avoid who you dont wanna fight, and some of the neat quest markers.
However best part I'd say is how advantageous the ESP and aimbot can be ( after adjusting it) in a PvP setting, if you use musket and go prone, enemy will never see your nametag, yet you can just keep shooting them with constant headshots using this cheat. They'll never have a chance as long as they aren't a big party.
Moreover, the performance impact in open world is rather minimal, however it does get laggier in big cities but it is mostly because of how many players there are.
I have not encountered any stability issues or crashes on my trusty old RTX 2080 and I7 build.