I ride 2 up with my wife and she likes the bike. She's rather petite, about 5' 2" 115 lbs.
For her to be comfortable on any bike for any real distance it has to have a backrest of some sort. I normally use a top box with a pad on it which I switch between bikes. She likes the seat and peg distance, plus the bike is smooth.
This is how my bike looks when we ride 2 up or I'm commuting on it. When I ride solo I pull the top box off.
Another shot from commuting.