I also went from a triple to a compact double (my Ruby expert). I have found the Ruby to be very responsive to climbing, the power goes to the wheels. We have a lot of very long slow hills here, also steep climbers. I find the long slows to be similar to a triple on the ruby, but those really steep climbs are a bit harder.
Just learn how and when to shift and keep that cadence up
Congrats on your new bike !!!