I got my first touring bike, an Electraglide Classic, two years ago. Had the stock seat and I added a backrest for me. The wife said she was comfy, but she never rode more than an hour or so. I was always comfortable.
I just traded up again to a Roadglide Ultra. It has a Mustang seat and so far it is good. I really like the lowers, they've helped a lot when riding this time of year (40's). I'm loving not having to wrestle with the fork mounted batwing fairing at low speeds... Also like how it feels on the highway. The wife hasn't been for a ride on the new bike, she doesn't like the cold.