Since I own a Fuse in addition to my Clip+, I prefer the square controls for the Clip+, just so I am not trying to rotate the circular wheel (that does not want to rotate) and differentiate the two units. I’ve since passed on my older Clip to my wife so I don’t have to use it and confuse myself.
Otherwise, I prefer the Plus’ more robust clip design. I always felt that the Clip’s clip was too fragile and will not last long with normal use. Overall, the Clip+ just feels much more robust and sturdy.