Works well but you can get it for cheaper
at the time of this writing it's 50 bucks more here than if you were to order it directly from biobrite, but it's a good product.  I've had it for a couple of months now and it sure beats having to stay still in front of a light for 30 minutes.  I just don't always have the time to do that.  This is great because it allows you to get your SAD light dosage while doing chores around the house or getting ready in the morning.  I wish there was a battery indicator, but you have to guess when to charge it.  The built in timer choices are 15, 30, and 45 minutes, so you don't have to look at the clock to see when you're done.  You can choose the light intensity from 1-5 which is really helpful.  Often first thing in the morning my eyes can't take anything brighter than the 2 setting, but after 5 minutes I can turn it to the 4 setting and be comfortable. You can also adjust the angle of the lighting. The visor is hard and sturdy, but it is super comfortable because it has a plushy band in the parts where it makes contact with your head. I wouldn't recommend this for anyone who suffers from seizures because when the battery needs charging the light starts flickering intensely like a strobe light.  Someone prone to seizures may not be able to turn the light off in time if this happens.
Rating: 4 stars