Other strengths and weaknesses:

PROS:

• Good movement (climb and move distance).
• Huge aiming reticle - you can achieve any angle you want at any time.
• Pretty good gold-earning ability - lots of backshots, high angles, etc.
• Fun to use. Impresses people when you make nice shots.

CONS:

• Low HP/Defense - Boomer can die in two duals vs many mobiles.
• Can be difficult to use - wind strongly (and strangely) affects your shot.
• No bunging ability to speak of - your shot doesn't disturb the enemy position.
• Boring because everyone else plays him.