I had been meaning to try one to see what they're like.
It just so happens that my wife also picked this one up on the weekend. Nickel Brook's Gluten Free.
The taste was a little on the bitter side and it had a lingering bitterness that I could probably do without. I also noticed a little gumminess with my saliva after not having a sip for a while. I'm not entirely sure if that's because of the beer or not, but I thought it was worth mentioning. :)
My overall impression was that this been isn't half bad. I have to admit that I'm glad I'm not limited in my choice of beverages due to a gluten allergy or sensitivity. But really, if I was, I think I could feed my beer cravings with this.
One oddity is that this is the first beer can I've seen with nutritional facts printed on it. :)