Get original.
Really soft bristles. Hardly feels like it's cleaning your teeth. I only used one of the brush heads for about a week and it broke so I went back to original equipment. If you like a really soft brush then it probably would be fine. I only gave it two stars for the poor quality of the rotating mechanism . Maybe I have been spoiled by using  original oral B brushes. I'll try the other three in the package and than maybe revise this review.
Rating: 2 stars