It was so easy. It took about 45 min. You just unclip the seat-belt sensor wire, unbolt the four bolts on the floor and then remove the seat. Remove the seat from the old base. Put on the new one, bolt it back to the floor and reattach the sensor wire. You move the seat a little forward and put the seat back up and it swivels around no problem.
In the 5210 with slide the passenger seat can only move to about 120 degrees because of the couch. The driver side can face back.