I haven’t used it in a few years but I’ve had wholly good experiences.
Example: I had to parachute into an abandoned project running an ancient version of RDS Postgres. I was having a hard time working out the many steps required to actually get it to a modern version.
The agent went as far as to run through the process on their end, showing the version jumps they needed to do, config options they needed to change at each step, etc.
That was easily worth the money.