If you're planning on majoring in any of the sciences calc 2 is probably a requirement. Aside from that, I found calc 2 to be really interesting. Calc 1 was just the bare bones of limits, derivatives, integrals, etc. Calc 2 was predominanltly integrals and their applications as far as infinite series, Taylor series, etc. Really cool stuff; although "cool" to me may translate into something else to other people. If you don't have to take it and you think it might pull down your gpa, then please don't, but if you want to work hard and learn some math that is pretty neat then I think you should go for it.