I can vouch for the awkwardness of trying to get the seats in. If I'd have known the folding seats had the isofix docking ports that would have easily made it onto the option list.
Without the folding seats you do get little dots on the rear of the back seats to at least show you where to aim but it can still be a nuisance as the isofix part of the seat can still manage to find the space below the isofix fixing point.
All the fun of parenting
