As a daily COTA rider, I often get frustrated at the reliability and variety, to be honest. I live in Whitehall and work downtown. My commute is either on the 2 or the 10; that's not an issue. My partner, on the other hand, works in Dublin, so he drives. If our car should happen to not be available for whatever reason, it would take him 2 1/2 hours to get to work, and the closest bus stop to his employer (Cardinal Health) is a mile to a mile and a half away.
From what I've seen, one of the problems is that the bus routes are set up on a spoke system, with the central hub being Broad and High, and everything going out in relatively straight lines from there. There's no way to easily get somewhere in the city, for the most part, without going through the central hub. One of the jobs I applied for was in Gahanna. If we had two cars, it was a 10-15 minute drive. If I had to take the bus, it would have been a 2 1/2 hour ride each way, just to go 10 miles, because I would have had to go through downtown to get from Whitehall to Gahanna.
The 2, as someone said, makes over 100 trips in one direction every day. I'm wondering if there couldn't be some of those final destinations (such as James/Weyant) that could be eliminated and made to go further on, and possibly reducing some of that congestion and over-crowding.