As a first pole,you probably can't go to far wrong for 50.
Just check that there are no cracks in the joints or serious chipping of the ends as this can weaken the pole.
Should be fine as a starter pole and you won't have broken the bank if you find pole fishing's not for you.
I am not familiar with the pole, but 50 sounds like it could be a good buy. I suppose the main things to think about are: Who is selling the pole & why and to make sure that there are no defects with any of the sections of the pole.Then as long as the pole will do what you want it to do, ie elastic ratings etc, then give it some serious thought .