I have been quite surprised by the amount of tools (azure CLI2.0, Azure Powershell cmdlets, az command, ...) to use to get out of an issue I faced with recreating a VM from a template because I mistakenly got a VM sysprepd using "stop". Not to mention templates on Github + reuse a VHD.... And the backup/restore vs "expected" snapshot behavior meaning was surprising.
The inability to rename resources is also annoying.

All of this should be somewhere upfront because it really makes the "first impression" somewhat bad.