There are several benefits of the half kneeling kettlebell bottom up presses including shoulder strength, core stability and grip strength but most importantly the bottom up position makes this exercise a terrific shoulder stabilizer and builds the rotator cuff strength effectively. The grip on the kettlebell needs to be very firm even if using light weights. You need to tighten your thighs, glutes, core, lats the whole arm and the shoulder in order to be able to press up the kettlebell. The exercise keeps the elbow in a perfect position for the press.