Awesome for someone who hasn't pumped oxygen and wants to hit deep sea loot crates and get pearls. Tamed a 145 with prime and pumped speed and stam. Was my favorite underwater tame hands down. You still want to bring flippers though.
Amazing for starting out if you wanna go in the ocean and you don't have scuba gear unlocked, they are extremely fast and can outrun pretty much anything in the water like the dolphin, I still use mine even now