Unlike with Nº 5
I also agree. Having traveled many times in Superliner consists since 1987, doing so has become a challenge for me during recent runs ─ with even a modest-sized single piece of luggage ─ in negotiating the "3-quarter" stair sets to and from the upper level. Age (mine) has begun to take its toll, particularly since around mid-2020. "California" cars and the Surfliners are much easier for me, since their stairs are straight and have no quarter landings in the middle.I agree. I love the Superliners, but they do seem to be a bigger tipping risk.