Calling all 3D printerers - I uploaded my first 'thing' to Thingiverse a few days ago. Don't own a 3D printer, so am looking for all/any technical criticism.

Feedback welcomed from anyone who regularly uses a cheap, hobbyist, FDM printer. I'd like the model to be as user-friendly as possible, so that even a complete-beginner/novice could print it without difficulty. LINK >> https://www.thingiverse.com/thing:4842740 

But maybe I'm worrying too much, and modern printers/slicing-software are more forgiving than I think?