why is the withdrawn commission so high (0.0003) + high maintenance fee almost half of what i earn per day. 
30000 withdraw isn't high, or you are one of the guys which are withdrawing 1-2$?
They have the largest maintenance fee around.. $.8 per Th/s lol
And you are comparing them with what cloud mining platform?
To hashnest (Which are they probably using to outsource their SHA-256). Hashnest is under $1 per 10Gh/s and their fee is $0.6 per TeraHashDay.