Tried it out for the lols, it actually is extremely good, you just have to know how to aim. I know all you Gjallerhorn users out there are going to find it hard to believe, but its possible to fire a rocket in a straight line and hit a target with a little bit of skill. XD But in all seriousness, the rocket launcher is extremely useful at pushing back slow moving, high damage enemies, and my team usually runs one with two Gjallerhorns unless the situation dictates thunderlord or truth (yes I know Gjallerhorn is "better" damage wise by a fair bit, DB is a utility launcher.). It is also very good for removing wizards instantly without wasting a Gjallerhorn rocket.