Review (5/5): Slow warmup, no "ready" light, but very effective.
This product works extremely well on my unruly medium-length beard. It does require several minutes to reach operating temperature, and there's no "ready" light to tell you when it gets there, so you have to do a bit of planning and exercise some vigilance--but the results are worth it. The best way to tell it's up to temperature is by the scent it emits when fully heated.