Perfect score.  It does exactly what it says it does.
I was skeptical, but now I’m not.  It works better than the reviews I’ve seen.  I’ve very curly beard hair and although it doesn’t make them straight as an arrow it gets them pretty darn close.  Just a quick pass in the morning helps me get the comb through my beard all day long.  Something I’ve never been able to do until now.  Pros: I like that it has a lock feature so you don’t accidentally change the temperature.  Also really like that it has soft silicon-like tips on the ends of each tooth so you can press the brush against your skin without burning yourself.  I’ve found that the trick is to oil your beard when it’s bone dry and move the brush through it very slowly.  Takes about two minutes.  I was worried about the heat damaging my hair, but after a month of daily and semi-daily use my hair seems to be just fine.  I use it set to 180 degrees Celsius.  It’s nice and small and easy to stow and use.  It comes with a nice little drawstring bag to put it in.  I can get about five days out of a full charge using it every morning.  Con:  slow to charge.  It takes about four or five hours to charge it from 30% to 100%.  So if you want to charge it for only a few minutes to get a run out of it, you’re out of luck.  No big deal.  Just keep it charged.
Rating: 5 stars