Everything seems to work fine. I added serveral users, made serveral teams.
Are there any limits? I want to use grafana commercially.
I don’t want the cloud version and want to host it by myself.
Am i allowed to make modifications (editing css files) to change the look?
Thanks in advance
welcome to the 
forum, @tuple
I am hesitant to try and answer this, because I don’t want to misinform you. If you asked your question here, then I think you will get a more complete answer:
I would say there is no “free enterprise version”. Yes, enterprise version is public (e.g. anyone can download docker image), but you need to have a valid license to have active enterprise features (e.g. access to enterprise plugins). So enteprise version without licence is more less the same as OSS version. I don’t see a point to have enterprise version without valid licence.