The 310R is an awesome machine!
I should also add that I haven't flown a Baron. I've been down the back throwing out rafts/flares during maritime SAR training, but that doesn't count.
The size difference would be my biggest concern. The Baron always seemed too cozy for my liking, and limited in baggage space. The 310R had a massive nose locker, wing lockers and room behind the back seat.
My only gripe with the 310 is the seat position. Although there is plenty of room up front, the seat doesn't seem to wind down low enough. Not ideal for the taller types. I once heard it described as similar to sitting on a bar stool at the kitchen table.
I remember taxiing a 310 to depart a remote Aboriginal community...the nurse started waving frantically from behind the fence. I stopped and shut-down to see what the fuss was all about. She pointed out that the steps were still down after we had shut the doors and started moving!
