This would be fine for a first electric glider. It has so much power because you want to get up as high as you can and start soaring; also, to help balance out the model. As for its set-up, plug the rudder servo into the aileron spot as it will be easier to fly. Finally, balance it so it is level, with the absolute slightest amount of nose down. It will make it a very docile glider.
Good luck and I look forward to seeing your progress!
P.s. Make sure you have a little bit of washout on the wing tips.