Landside is not too bad. The main change is that after the ticketing desks you have to head to the far end of the desks to access security. Under the previous (and future) you entered the large departure area landside and could chose which set of security gates to head to. It does mean on very busy days the B and C security can overflow into the AS ticketing area. But all things considered it’s been pretty painless. There is an extra hike airside from security to the C gates but no more than an additional 5 minutes or so.