I've been varying our location during HSing and I think it's working well. We start out with some seat work at the table. Then we retired to the deck for a time. Later in the day we did read alouds on our comfy new couch in the guest room/office. I think the change of scenery helped w/ concentration and interest rather than spending the whole day at the kitchen table. Now if we just get a nice table for the deck, we can add that to the routine for seat work.