All features are undetected, and we’ve never had a feature detection. So using Rapid Fire won’t get your account banned, reports will. As long as your not blatant then you’ll be fine
Most of the Aim bot's users will not know where to draw a line between where not to use or overuse it; if you research and get some faqs about the bot, it would be even better for the buyer and players.
I used an AimBot for a few VCMP games back in 2016, and I didn't get banned, mainly because the server was not moderated, and other players were using Aimbots, so it was apparent, and no one complained about it, but multiplayer games these days care about their revenue and take it seriously, and some butt-hurt players spam report might be enough to get checks on players who're playing too well.