I've used it only a couple of times, but prefer a traditional toothbrush.

All you need to buy is new toothbrush tips (about $10 for 2 new ones)

It's similar to the specs here:
https://www.amazon.com/Oral-B-1000-Rechargeable-Toothbrush-Powered/dp/B003UKM9CO/ref=sr_1_1_a_it?ie=UTF8&qid=1495066159&sr=8-1&keywords=oral+b+precision+1000
(~$50 new)

Pickup on campus.