I have the 16-32 drum sander and like it. It isn't the oscillating model unless I shake the stand a lot
Naturally that one will be different from mine, but certainly there's a learning curve to using a drum sander especially when trying to take off too much at a time (it sands, not thickness other than the effect that, yeah, sanding thins it). There's also burning issues. All of these problems form the learning curve; once you get past them, they are cake.
I actually have 2 16-32s; long story. The other is a real Performax from before Jet. Other than the paint job and, later, the SandSmart controller, not much changed -except- the dust port. It went from 2.5" (Performax) to 4" (Jet Performax). That makes a very big difference; besides gathering the dust, you want a lot of air cooling the paper and wood or you can get nasty burn streaks.
I think you'll be very happy with the oscillating model (do report back [smile]) One problem with using the model I have (non-oscillating) is that the passes are all strictly linear. You have to go over the result with a ROS to eliminate the streaks you'd see in raking light. Naturally you'd sand later anyway, but it would be nice if you could get away with spot sanding rather than everything. I use my RS-2e after the drum sander to kill the streaks (same grit as last drum grit). Hopefully the oscillating feature of yours will reduce or eliminate further sanding.