My wife and I tried the SUMMER INFANT HAND HELD COLOR VIDEO MONITOR 2.5 inch Screen - 02100A earlier this year. Unfortunately, both channels on that device had significant audio and video interference. Depending on which way we held the receiver, we could see 3 other babies in the neighborhood. We were not comfortable with the fact that others would be able to look in our baby so we returned that model.
This item advertises zero interference and I'm happy to say this is very true. We are able to leave the monitor on at night and do not have to listen to the hum and static we experienced with the first monitor. We're also able to receive a very good audio/video signal over a block away from our house. We have 802.11B and 802.11G wireless networks as well as 2.4GHz cordless phones in the house .... none of which have been affected by the addition of this new wireless device. It also advertises a secure and private connection which appears to be the case as the camera and video monitor were synchronized at the factory.
The video quality on this unit is comparable to the 2100A model we tried, just on a slightly smaller screen. It's not TV broadcast or camcorder quality, but you can easily see what's going on. The color video on the monitor is a bit washed out. I can pick out some colors, but it's not much more than a black and white video. The infrared night vision is really cool! It produces a black and white image, but you can see details clear as day.
We haven't hooked up the crib soother yet. It's designed to attach with a type of clamp that doesn't easily fit the curved edges of our crib, but I think I can still make it work.