I'm going to order this low pressure automatic waterer for my small flock from Fleming Outdoors. Has anybody ever ordered from them and is there anything to complain about? Most importantly, any complaints about this product? It's cheaper than the cups but it seems like it will do a good job. Thoughts?? http://www.flemingoutdoors.com/CATALOG/low_pressure_automatic_waterer_4987175.htm It looks pretty spiffy eh? lol.