So far good:

-I like the mining-style payouts. They typcally come every 20-30 min and have a more authentic mining feel.
-You can buy as small as 0.01MH for Scrypt! Once they add auto-purchase + the consistent payouts this could be interesting
-Payments adjust right away. When I doubled my MH, my payouts 30 min later were doubled as well

The bad:
+Can only be paid LTC for Scrypt and BTC for SHA. Forums mentions option of adding in alt payments/mining later
+"Last 24 hours" Is slightly confusing, shows payouts for that current day -- not for the past 24 hours.


For reference I also have 8MH Zencloud and 10MH Genesis Mining. I would personally rate Zeus/Zen tied first, Genesis last. I did buy Zen at 16/Hashlet though, given today's prices that rating would probably change