This two person rocker looks like one of those things that an art students dreams up, a high-priced artsy retailer makes a limited run of it so that rich people can put it in their homes to look at, and nobody ever actually uses. I think that anyone who did actually sit in it would probably decide that its a very slick design but probably awkward to use and potentially uncomfortable. That is just my impression of it based on this picture. Also in the ‘form over function impractical’ school of rocking chair design; this chair: