I’ve never had one - and don’t now because I don’t think I can afford it, and keeping my relatively small flat clean is not too much effort for me
I think it’s completely fine though - just a personal choice about what you spend your money on (as long as you pay a fair amount to the cleaner and are not a dick to them of course)
My ex got a cleaner and it turned into a whole “thing” - with her saying the cleaner was not doing a good enough job. The thing was that her flat was/ is a bit of a tip. I can’t imagine there was much time for actual cleaning after tidying up all the mess