We use it for roofing felt and for household dressings like Tyvek. Great time saver and ultra light weight for long working hours or working in tight spaces. It bounces very, very rarely - once per spool at most. Easy to load, easy to shoot and quick to shoot. The downside of its light weight is that it feels quite fragile. A decent fall would probably have crushed it, but it survived a few short falls on ours. The other downside is the cost of the caps, but the time savings and safety are worth it.