(in terms of reported hashrate accuracy, effective payment etc ...)
Flypool hash rate is all over the place but payouts are on time
Nana pool hash rate is stable but payouts sometimes get delayed
I mine at flypool and I can say payouts are on time and hash rate is up an down
My rig is doing about 700h/s according to claymore, but Nanopool show something closer to 600 than 700.
Will try flypool to compare.
NB : I have many payout all the day from Nanopool , no worries about it. But not sure to be paid as much as I should !
I havent used nanopool but can share my experience with flypool. Yes, the reported hash-rate is all over the place... my graph looks like the Rocky Mountain range lol! Since going to v5 a few hours ago, I have been bouncing anywhere in between 350 & 450 h/r. But... they do pay out very consistently, which is very important given the volatility of ZEC.