I have the S300. I picked it because I wanted the cart. Quick Clean has been used maybe once or twice. Mostly I just drop it in and push the button for the standard two hour cycle. If the pool is spotless two hours later, I pull it out and rise the filter, if not push the button again. Quick Clean just cuts the time down to one hour and tells the robot to stay on the floor only. I don’t really see any advantage. An S-200 would have been fine for me, if it had come with a cart. 200, 300, 300i are all the exact same robot with just a couple control buttons and some software differences. I consider Bluetooth control a gimmick, since you have to be standing right next to the controller to make it work. They could have just put directional buttons right on the controller. I just can’t really justify the price differences between the models.