Micro 4/3 lenses vs canon lenses

HI Every one, id like to know every ones opinion on using canon lenses with an adapter on my new OMD E-M5 that i just won, i have won a canon 60d as well as a omd and i dont want to have to by two sets of lenses for both cameras im looking at getting some rokinon manual lenses with built in aperture and manual focus there for using an adapter wont be an issue.

Thanks