Product review (4 stars): Works Great.
I've been using this for about 2 months.  I've got a long beard (yes, I use it on my beard!) and it help tame it down. I'd give it 5 stars but it doesn't get completely hot. The end of the bush is nice & toasty but the section closest to the handle never really warms up.

Very easy to use and switching from the 2 different bush sizes is very easy. Word of caution! Don't discard the clear plasic covers for the brushes. They help them keep their shape when not in use.

I first learned about this by watching a beard expert on YouTube that recommended it.

Amazon deal was $10 cheaper than off the shelf at Walmart for the exact same item.  Go Prime!