Cloud mining users can only use PPS. Hardware miners can choose if they want to get paid by PPS or PPLNS.
PPS payouts depend on your hashrate. PPS is paid at 6:00 AM UTC every day and counts the previous day's hashrate (00:00 to 23:59 UTC)
PPLNS payouts depend on your hashrate and how often our pool mines a block. If we mine more blocks you get paid more, if we mine less blocks you get paid less. PPLNS is paid 100 confirmations after a block is mined.