I've spent a fair amount of time checking this out.
It looks like something I'd consider.
I like the flexibility in size.
While I have neither the space or the need to make something as big as yours, for not much more money than the "better" 3018 machines on Amazon, I have the ability to make one that would be able to handle a lot more situations.
They may be out there but haven't seen any negatives yet.
I did find some info that I could upload the machine from an SD card.
That's real attractive to me
Edit to add:
I've watched some assembly videos and they look simple enough that even I might be able to do it in a reasonable time.
I've never been much for tinkering just to tinker.
I'd like something that I can have functional in fairly short order