Rotadent Toothbrush

I just returned from the dentist and had an experience that is not so pleasant ... I looked at what works best toothbrush to clean your gums and they sold toothbrushes Rota-dent electronic .. I was wondering if anyone of you has recommended that the toothbrush and what are the pros and cons about it. = Thank you)

Called Rotadent it cleans better than 2x