We did 7 weeks in Europe (late Sept-early Nov) - mainly leisure but included a conference. One mid-sized delsey spinner plus a WF sized carry on each strapped on top. (no laptops though, just two iphones plus a shared ipad) and a shared ristretto.
I notice you could collapse your load to two bags when necessary so I imagine our load was not unlike yours - really no problems for the style of travel we do (mainly urban, staying put for at least few days at each stop). I would lighten it a little for the next time but not much.