
Unfortunately, cheap are OpenVZ VPS which do not allow to upgrade kernel or install kernel extensions as this is shared kernel (4.15 for now), KVM (fully virtualized) is much more expensive.
I did not experience any outages.
Big, big plus for free 1 backup (which can be removed and another one can be created) and possibility of instant VPS Upgrade.
Currently using vServer M (Conference/Collaboration Software), waiting for provision of vServer XS for HAProxy and some other stuffMniej