The VM gets messed up once a day, for several days now. The lv-nextcloud-root partition gets remounted as “ro” and the system does not work, nor even can not be shut down cleanly. When I fix the issue with a ResqueCD it fixes some missing/invalid inodes and it is OK again for one day.
Other than that, I am very impressed with the product!
Seems to work better on a separate PC with less other workload. The server that I was first trying it has 66G RAM, Xeon CPU and lots of workload. I saw some “timeout accessing disk” error on Nextcloud console just before it wend bad, and decided to try an another PC.