I do own one...
does it have plastic jams the way we have paper jams? Clogged nozzles? Low "ink" or whatever the consumable is?
Yes, yes, and yes.
Driver problems? Compatibility problems between template any my printer?
Surprinzingly, those are incredibly rare (free software is awesome).
Of course, they only make any economical sense if either you take utility out of just owning one (hobbyst tinkerer) or if you use it to print stuff that isn't mass produced at all.