1) How is the battery life in the DOD 250? 2) I was thinking about picking one of these (DOD 250) up for an OD/Distortion effect on a few songs. I currently have the Boss DS-1 that I don't really care for (on bass anyway). Since I only plan on using the dist. effect less than 10% of the setlist, should I even bother getting the DOD. Is it noticeably better that the DS-1? THANKS GUYS!!!!