I've handled the metro a lot but not ridden by it. I think it's excellent. I have ridden with friends using it.

I have a Streak which is a miniature Metro, and it's very good but battery life is not as good. It suits me because I don't use it frequently.

Be careful to aim these lights down, as they don't have shaped beams. If they go into people's faces, it's painful, so don't do it.

I've also been using the Cygolite Hotshot tail light and think highly of it. It's been tough. I hang it by a cloth loop on the back of my toolbag, and it hasn't shown any risk of falling off.