The vast majority of "hobby-grade" 3D printers use Fused Deposition Modeling (FDM), and thus use filament. There are only a few "Carollas" out there using other additive manufacturing technology. Formlabs' stereolithography-based (SLA)
Form1 line is the noteworthy exception. If you're willing to invest more (I'm not sure where you're drawing the line between "Carolla" and "Lexus" in the wide world of additive manufacturing), Stratasys'
Mojo is supposed to be relatively hassle free. It's still uses FDM (Stratasys being the company who pioneered FDM), but it's designed to function similarly to a traditional printer. You replace cartrdiges of material, rather than spools of filament, and those cartridges include the extruder (so you don't have to worry about extruder clogs and maintenance as often), and the software is supposed to be incredibly simple and intuitive. However, this does drive up the cost of material, since you're limited to buying from Stratasys. My favorite feature is that it supports soluable support materials.
Disclaimer: I have no first-hand experience with either the Form1 or Stratasys Mojo... yet.