The living area of the G felt very small to us. And the queen bed is two foam cushions. One slides over the other when the slide comes in. The V is also small feeling. The J, which has been in the lineup from the beginning, is a good compromise with more room and two fixed beds, assuming the buyer opts for the overcab bed rather than cabinets. DW and I went round and round on this and feel we'd want an M or a J, of the current plans. Personally I'd like to see if we could fit a certain Ikea sofa-bed into the place of the M sofa bed. We have to find an M again and measure it.
Here is the bed. It comes in 3 choices of firmness, and is very comfortable.
http://www.ikea.com/us/en/catalog/products/S59874472/