F2pool is a collaborative pool where miners are allowed to cooperate their computer resourcesand source out a block and they get paid for this based on the numbers of block they found. The pool also pays 3% reward for every miner for using the pool. I think such pool is scarce. F2pool is the only pool using p2p payment system.
They have a very low withdrawal fee and it is good that it has a wallet of their own known as F2pool wallet. Payout is made into this wallet before miners can now move it to any other account.
F2pool was known as Discus Fitch and was launched in 2013 and since then it has continued to grow to the point of becoming one of the first five largest pool in the world. It has more than 2 million users majority of which are Chinese, I guess this is because it is located in China.
Now it has extended it's tentacles to other continents to countries like US, Russia, Canada. It has above 17.5% of cryptocurrencies market world over.