Considering Prefect 2.0 has only gone into GA at the end of July I would say for you get the product is amazing. The documentation is actively being worked on, that going to take some time, but it will get there.
Prefect is entire re-imaging the task orchestration system. The level of flexibility you get with it and ease converting entire workflows into reusable tasks is par none. It always harder re-designing a system from scratch. Making things look pretty isn't super hard nowadays and polish comes with time.
The last thing i want to point out as well is how great the folks at Prefect are. They actively engage with the community. The speed at which they respond to and add fixes is amazing. Just today three of my requested changes/findings were all fixed and added into main