Ring Alarm Smoke and Co Listeners and Flood and Freeze Sensor

Fairly new to Ring and still have a few window and door detectors to stick up. I'm in northwest Georgia. Does anyone have the detectors you use with your smoke and carbon monoxide alarms? How do you like that type of unit? I have a 3 story house so assume I would need the signal booster (forget what they call it). Also does anyone have the water leak detector? Thanks!