The pricing is misleading.
You say on the landing page that the free plan is €0 per month, but in reality you still have to pay for the control plane nodes.
The cheapest control plane node is €3.29 per month; if you want high-availability - you need to double that.
So in reality you would pay €20 per month for the standard plan and also extra for control plane nodes.
I’ve used Openstack at my current $dayjob and I’d say that Openstack is probably one of the buggiest solutions that I’ve ever used. Even simple things like stopping or resizing VM-s sometimes failed completely and the VM came unusable after that. Feature wise it’s also lacking. Seems that Openstack spends more time/money on marketing and generating hype than creating a good solution.
I’d even say that Docker has a somewhat similar problems, they spend more on hype/marketing than creating a stable and usable solution. However, at least Docker is more usable right now than a year ago, the same can’t be said about Openstack.
I'm using it right now