The DREO Space Heater is the better overall choice for most people who want straightforward, quiet, fast spot heating in a small room. Its main strength is day-to-day comfort control (Eco mode, wide programmable thermostat, oscillation, timer) paired with consistently positive noise feedback. Its main limitation is long-term reliability uncertainty, with some reports of failures after about a year.
The duraflame Electric Fireplace Stove Heater is the stronger pick when aesthetics matter as much as heat. Its main strength is the realistic 3D flame presentation with independent flame-only operation, plus stronger multi-year reliability anecdotes. Its main limitation is usability polish: noise and remote/control experience are more mixed, and some users find the thermostat and hidden buttons less convenient.