Best Dungeons & Dragon crate subscription by far. The crates are full of things for both the players and the dungeon masters... and even some really cool non play related swag! Things you need, things you want, and things you didn't even know about.
The Dungeon Crate team is also amazing. Every question answered, every issue resolved, and every complaint addressed. Real people ready to help you any way they can, with a smile and a thank you (I assume the smile, its the internet). The Facebook groups and live shows make interactions with the team a reality and they really do listen to their customers!
Best monthly crate I have even received!