its a normal sata drive. i can no confirm if it has to be the same size drive. i have replaced the sd card on a hc250 with a larger one with no issue. pm me your email so i can send you the img.
Set and scheduled event to start the Roomba and turn on a lighting scene. Then set a second one to turn off the lights when done. I sent mine to turn the light off after an hour as it takes about 50 min for my clean cycle to finish.
i only use them. no issue and work well. i also use the pico remotes for volume control in some rooms.
Keep in mind there is a 50 device limit, also you will need the PRO hub to connect to control 4 not the one they sell at home depot.