The KC62 was recommended to me for its speed or ability to keep up with my main speakers. It’s the only sub I’ve tried, and I am very satisfied with it.
Subjectively, I like the KC 62’s size and industrial design. And, while I couldn’t say so based on direct experience, others who have vast subwoofer experience and expertise have posted that small rooms do very well with small subs for 2C listening. To be clear, I’m declaring my room small, not the OP’s.
Not sure if it’s been said, but SVS has a model that competes with the KC62 for less money. John Darko compared them to each other on YT.
Good luck