I quite like using Kimi.ai for quick overviews of topics but you still have to fact-check its outputs.
Every other AI makes me pull my hair out but Kimi doesn't try to pretend to be a person, it behaves and speaks like a tool so it doesn't ever really piss me off. It can understand when you ask it to do something like gather a list of events/things with x rules between y dates too which actually is useful and does reduce my manual work occasionally. It's much much slower than other AI though because it does a lot more thinking.