Early on, we used one of those "management" companies. They make it easy for you. You don't need to do anything (except all of the work... Meet & greet, cleaning, laundry, maintenance...).
They create your listings, centrally manage them, and blast you out on every platform worldwide. You have no contact with the guests before booking (they handle it for you) , and you're obliged to accept every booking, no matter what.
They have "professional" writers who write your description based on "statistical analysis" of descriptions that appeal the most. Most will even send out photographers and get their own photos.
Luckily, we didn't give up our Airbnb listing, we kept control of that ourselves.
The listings created by the company we signed up with were pretty boring. The photographer they sent wasn't very good, and the descriptions they wrote were very dry and technical.
"It is a house with 4 bedrooms, 3 bathrooms and a pool, a kitchen and a terrace. There is free parking". I asked why so lifeless, and they said nobody ever reads the descriptions, so it's better to keep it very short, just the basic facts.
I think their terms were 5% of our take after everybody else's commissions.
I got one booking from them. The guests were creepy. I cancelled them after that.