I switched to ABCPool because of their no fee at the time which they have since raised to a whopping 4%. Since the 4% fee their reliability has taken a dump and I have lost a lot of mining productivity due to this.
One DDoS and their reliability "takes a dump"? Every single pool* is vulnerable to a DDoS and all the large ones have been attacked and taken down for hours or days at a time. ABCpool has a good track record of reliability and low stales. A whopping 4%? They are the cheapest PPS pool available right now. Deepbit charges 10%.
* All conventional centralized pools