Pros: New gun(s) every month
Detailed information about each gun
You can vote on which model should be in the game next (at the cost of some experiance)
Daily Puzzles
Quiz on models evey 30 minutes
Daily reward system
Free
Bonus content (skeletons and vehicles)

Cons: Grinding
DLCs

Overall, I'd say the pros outweigh the cons and the only suggestion I'd make is for credits (one of the ways to unlock guns) to be available in the daily reward (day 7) and for when you level up.

Pros: New gun(s) every month Detailed information about each gun You can vote on which model should be in the game next (at the cost of some experiance) Daily Puzzles Quiz on models evey 30 minutes Daily reward system Free Bonus content (skeletons and vehicles) Cons: Grinding DLCs Overall, I'd say the pros outweigh the cons and the only suggestion I'd make is for credits (one of the ways to unlock guns) to be available in the daily reward (day 7) and for when you level up.