I contacted them once before moving over and once after and they were good to me. I'm happy with them for domains but I wouldn't recommend them for email.
I’m quite happy with Glauca [1], they’re not quite as cheap but their DNS stuff is pretty good and they are friendly and helpful. Only downside is their website being a bit slow sometimes.
I've had a horrible experience with zone.ee (aka zone.eu) and will always caution clients against using them.
I had a client with a domain and some VPS hosted in zone.ee, and one day out of the blue with no prior communication, the client received a notice from a zone.ee employee that they had disabled a production service on a VPS, because apparently the Docker configuration of that service was causing some issues in their infrastructure, which was already quite strange.
The real scary part was that the they didn't just turn off the VPS - the employee had actually backdoored into the running VPS and had manually disabled docker.service. The fact that they would do this without any communication beforehand just left me stunned and we immediately migrated away from zone.ee after that.
That sounds unfortunate. I imagine it must've been time-critical, some side-effect of Docker being virtualised? I'd guess the hands-on approach was to avoid a full service disruption that a full shutdown would've caused.
That aside, shielded VM's are very rare, most providers have the ability to see inside VM's, issue commands in them.
