I can't say that that Debian has have been a daily driver for me but I have used it for servers.
Coming back to using Debian for servers on Promox I keep runing into my user account not being part of the suoders list.
This is a really simple fix :
su -
//Enter password
usermod -aG sudo username
//replace username with your account name
exit
Now logout. If you're ssh'd in just kill it and reopen.