I use Portainer a lot and have no issues with it. There’s very little you can’t do without Portainer though, it’s just a convenient web frontend to access Docker tools. It’s helpful if you manage a lot of stuff or multiple hosts. I also use it at work to expose basic management to members of my team who aren’t Linux or Docker savvy.

It’s essentially a GUI for Docker. It has its own quirks that, in my opinion, don’t match Docker’s UX and can make it more complicated to customize deployment. But Portainer can make multiple environments or dozens of containers easier to manage. e.g. I do most of the actual work using compose yamls but use Portainer as a reference to organize subnets, ports, and volumes. Or if I’m unsure what the problem is and just want to see all the details of each container faster.