Nice tree!
I have a few I'm working on. They take hard pruning well and will back bud everywhere. If I prune after mid September, any new growth doesn't make it through the winter.
This one is coming along, picture from last year. It really needs a pruning and some wire:
View attachment 370462
View attachment 370463
Only real issues I have are with inch worms and catepillars, and sometimes borers.