I put all three here because they are all the same company, Loot Crate.
Loot Crate itself is one of those monthly subscription mystery box places. They have a good customer service base and respond to emails quickly. Their delivery time is a big mixed. I suppose it depends on what you order.
Loot Anime is one of the mystery box subscriptions. It's the only one I subscribe to. Every month is a gamble on whether or not what you get is worth the $34 monthly fee, but most of their items are high-quality. The crates always have a tee shirt, a manga or light novel, a large anime poster, one wearable item and something collectible. They also come with collectible pins that unlock digital manga on an associated site. Delivery time is usually close to a month. Payments are deducted the 10th of every month and you usually don't get the crate until the very end of that month or the first week of the following month. It's still a lot better in items and communication than a lot of other places.
Loot Vault is an actual shop run by Loot Crate. This is where items from past crates go so people who missed the crates or just wanted certain items can buy them at their leisure. The prices are clearance marked, and when they have sales, the prices are even lower. This is probably my favorite section of Loot Crate honestly. These don't arrive in a custom box like the Crate subscription boxes do. I've had Vault orders arrive in Loot Gaming boxes and in Loot Anime boxes lol