Had an exit row seat from Prague to Amsterdam. Was given the choice to upgrade to Business Class. Intra-European Business Class means the middle seat is blocked off but otherwise, it is normal seating. I had the exit row to myself so I got three seats and lots extra leg room. They would not let people move around to seat in these seats so no one sat in my row. It was much better than Business Class due to the great legroom. I have flown KLM many times and like their service quite well.