I got the 7" monitor a year ago. I use it a lot. It's a great price for a great piece of equipment. I have fished as far down as 35' and the monitor can still see fish. I rotate two 12v batteries and keep them charged. I have a tripod with a rubber stop to adjust the camera direction. This is a must I agree.
Even in this milky Cotton Rd. water I can see those wonderful dinks attack my Ficious jig. Kidding aside, it allows me to keep the jig away from those pricks and alerts me to the presence of schooling jumbos.
It's the single best ice fishing purchase I've ever made. I would take this camera over a flasher anyday.