Okay, so I did this press during my noon weight training workout today just to see what I think about it. My core was noticeably engaged, but what I really noticed was the fronts of my deltoids that were on fire after about 40 reps.
Otherwise, the only other observation I have is that is is a little awkward getting into position with the bar in your lap, then getting up, and the bar set aside when you're done.
This is a nice compound movement, and definitely in line with my preference for weight training lifts that involve several muscle groups. This one works deltoids, arms, chest, core, and hips, among others.
