The Cloudsurfer 2 is On's everyday trainer. The CloudTec Phase midsole collapses in sequence from heel to toe, which makes the transition smooth rather than springy, and soft Helion foam does the rest. There is no plate. At 9 mm the drop is on the high side, so heel strikers land where they expect to.
It suits you if you want one pair for the runs that are not workouts: easy days, steady days, the long one at the weekend. At 261 g it is light enough to stop feeling like a chore.
It is not fast, and On does not pretend otherwise. There is nothing in the midsole that pushes back when you ask for pace, so keep a second shoe for that.