This belay device is great for what limited uses it has: belaying the second. It is very light and is fantastic for this purpose. I used it some while doing multi-pitch climbs at Seneca Rocks. My guide says it's his preferred device for belaying the second climber. If you want an all-in-one device or are going to be switching leads, it is not be the best, but it is hands down the best for belaying a second.
This review was written in the old system and had content requirements that are different than reviews written today.