WavesLease node runs on 2 servers (main and backup) and is operating flawlessly since 2018.
90% of Mining Profits are paid on Mondays in $WAVES, $SURF or $NSBT (details here).
5% of Mining Profits are distributed to Waves Lease Token holders.
When BR < 1, 4% of Mining Profits are reserved for increasing the SURF Fund while 1% is reserved for Node running costs.