We got ours a couple years ago on Woot.com for $99. Definitely worth that, but at the prices I see now probably not ...
Makes ice pretty fast, but not really that great for drinks - Ok to dump in the cooler, but it is soft, cloudy ice, and since the unit does not have a freezer - just dumps the ice into a basket - it is not that cold.
We set it up outside, and as the ice is made, dump it into the beer cooler, and while it defintely cuts down the amount of bag ice we have to buy, it is not a total solution.
Like I said - $100 worth the price - $250 is a lot of bags of ice!
Noise? - while the machine doesn't make much noise, you can hear the cubes dump when we are inside and the ice maker is outside. Not goint to wake you up, but would not want it in the trailer ...