This thing is interesting wannabe puzzle. You can create infinite variations of hexagonal and triangle patterns. When you scale it 50% 200% it fits together with smaller or bigger pieces. It can be used as a real life wallpaper.

So.. it does NOT look hard to print but it is tricky.
PROBLEMS.

When you print at different speed the layers are not even
When printing in vase mode the top can melt under hotend
When printing more than one - Stringing + top part is hard because of repetitive retraction
angles are sharp so expect ghosting.

Im sorry ahead for your wasted filament ;)