The congregation I attend is too small for its own church proper, so we meet in a private home that has liturgy in the living room. No pews there, but the younger kids seem to enjoy crawling around on the sofa...until mom comes over and yells at them, or grandma comes over and makes her granddaughter put on a headscarf, which is apparently the universal sign for "playtime is over" in the Coptic church (my Arabic isn't great, but that look from grandma is universal).
I like this system. Nobody has to have arguments about pews. I'm told that most Coptic churches in the USA have pews, though, so I guess this is not such a hot issue for Copts in the West (maybe because a lot of the buildings are purchased from Protestants or Catholics, so the layout is already established).
As I remember, the OCA church back home in California had no pews, but easily movable chairs when necessary (such as during the yearly presentations on Byzantine chant or Orthodox icons during the Glendi festival, that always attracted a lot of non-Orthodox), and the traditional bench along the wall for the elderly and infirm. I like this system, too. If we had a dedicated church building here in Albuquerque, I would want it to be like this. I don't think the pews in that picture would lend themselves to attentive worship. Isn't that what the debate over pews really boils down to?