What a clever idea, a pullout dining area when you need it, built right into the kitchen cabinetry and pulling out like drawers. I don't know how they get such a big table into the counter, perhaps there is a fold in it. Leslie Claggett of KBCulture, a very good British kitchen site, writes a cautionary note:
Can't find any more information at Alno, but love the idea.
Without casting any aspersions on either the manufacturers involved or on homeowners of a critical mass, I can't stress enough the importance of checking and rechecking the load limits on both hardware and materials for such an installation.