yes

1) it was beta
2) it was experimental also publisher integration
3) it was not profitable
4) it was DDOSed
5) i lost 11 eur in 2 weeks
6) it was 2 extra hours to take care for me every day that i cannot affor
7) it was my decision and it was correct.
use cmd line mining if you can, it brings bigger hashrate and much bigger profit