I ditched ubuntu in the deepest hole I could find because every 6 months was a nightmare, and I replaced it with linux mint which seemed to actually work.
Then I had to deal with such system upgrade and this was a real pain, so instead I replaced linux mint with linux mint debian edition and things went well for a while.
Then came the system upgrade time again, it was not as painful as with regular mint but it was still a pain to manage.
My grandma managed to deal with her everyday use of the computer but there is no way she could manage the mint system upgrade part by herself. So the computer lived for a while with only the non system upgrade until I switched her to manjaro which allows her to have a roling release and deal with system upgrades herself.
This right here is why I switched to Debian. Got tired of downstream forks breaking the upgrade process, which hasn't been an issue since switching a few years back.
The Gnome software center makes it easy to find and install apps too, reminds me of click n run from Linspire.
It's not very often you see Click-N-Run mentioned. Early versions had an easter egg if you queued apps to install whose first letters spelled ClicknRun, then pressed Ctrl-Alt-Shift-C.
CNR was years ahead of any of these app stores, really wish it had continued on rather than others having to build APT clients that still don't work quite as well.
Careful with Manjaro you are close to bleeding edge packages, and updates may break things. Not Manjaro but on Arch I lost bluetooth after an update last week - I had to downgrade packages for a day to fix it. You don't want this to happen to normal users.
I ditched ubuntu in the deepest hole I could find because every 6 months was a nightmare, and I replaced it with linux mint which seemed to actually work.
Then I had to deal with such system upgrade and this was a real pain, so instead I replaced linux mint with linux mint debian edition and things went well for a while.
Then came the system upgrade time again, it was not as painful as with regular mint but it was still a pain to manage.
My grandma managed to deal with her everyday use of the computer but there is no way she could manage the mint system upgrade part by herself. So the computer lived for a while with only the non system upgrade until I switched her to manjaro which allows her to have a roling release and deal with system upgrades herself.