This seems like a good option as a daytime running light (I use it in 'flash' mode). The 'lens' of the light is frosted, I don't think there's any way that it's bright enough to illuminate a pathway at night (I don't ride in the dark, anyway).
Having said that - even in bright daylight it seems to be visible from far enough away that it's one more way to hopefully catch drivers' attention. The 270-degree wrap is also nice to give a bit if side-visibility.
I've had no issue with battery life, it probably really is somewhere around 7 hours in flash mode.
Construction quality seems good enough. The plastic housing isn't super robust, but it doesn't feel like it's going to self-destruct, either.
It really does clean up the cockpit - and as I already move my Garmin from bike to bike - it's dead simple to just move this as well.
Overall - no complaints, seems to do the job, solves a problem. I'd buy it again (esp if you can find it on sale - I got it on one of daily Leader's Club specials).
I like the light itself I have had mine for about three months now and it has worked flawlessly I use it to commute to in from work about six miles each way. The rubber strap broke the other day on mine and I emailed blackburn to see if they would send me another and they said that part is on back order so I would imagine it is fairly common. They did offer me to send the whole light in and replace it for me so their customer service seemed fine I will have to buy a light to use while it is being sent off. I will probably give another brand a go just for comparison
This is a fine light for commuting, but the mounting is a bit clumsy. I ended up mounting it vertically on the frame headtube and it worked surprisingly well. But on the bars, its not great. Still, I would recommend it.