Battery life depends on head speed and flying type but 7 to 9 minutes is about it.

If setup correctly theres no real difference in flight characteristics, the CCPM setup is less complicated mechanically because there is less linkages and its cheaper to produce and lighter. The down side is radio setup and if you hit the blades you will be replacing one or more servo gear sets because of the direct swashplate linkages

MPM is less complicated to setup the radio but requires more parts in the control system.