Working for septa worth it ?

I got hired for the bus operator & I wanna know what’s the pros & cons realistically. I hear so many different things good & bad but ultimately what’s the everyday like ? I work at the post office now & the walking & mandatory overtime is killing me i heard the schedule is brutal to at septa but at least I’ll be driving & not walking all day & I will be getting paid more & every week at septa im just scared to get fired I never drove a large vehicle like that I don’t wanna crash lol. I’m not really worried about the public I lived in Philly my whole life I already what it is laugh & keep it pushing. Also is there a lot of ot? what are the benefits & retirement plan like? Do yall think I should stay at Post Office or will septa be better ? I probably give it a shot regardless because I hate the post office but any advice would help loll