Hello, yes, we did, with a 6 and 3 year old. We also were able to have a double bed and the Pullman was above the single sofa bed.
Our cabin number was G331. From memory it was an IB grade (obstructed view) cabin.
You could get to th balcony when both beds were out, but it was a bit of an effort (squeezing past sofa bed while bending down to avoiding banging our heads while the Pullman was in place!). We still managed it without waking th kids up.