Okay, so I caved and bought this little guy after freezing my toes off in my home office. First impression? It's SMALL but mighty! Like, it fits perfectly under my desk without being a tripping hazard.
The heat output shocked me - I barely use the high setting because low (900W) is already too toasty if I point it directly at me. Had to angle it away after 10 minutes. My 100 sq ft office went from 'arctic explorer' to 'cozy cafe' real quick.
Safety features give me peace of mind - tip-over switch works (tested it accidentally when my cat knocked it over) and the exterior stays cool. Though the front grill does get hot, so duh, don't touch that part.
Only quirks: The always-on red light is kinda annoying at night, and the 'power' icon on the knob is confusing since you can't actually turn it off that way. Also, the handle is tiny - I have to carry it like a tea cup.
After using it daily for 3 weeks, I'm obsessed enough that I'm buying a second one for the bathroom. For $20? Absolute steal compared to those fancy $100+ heaters that break in a month.