Country Way 5 Gallon Rechargeable Sprayer?

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Has anyone had any experience with or heard anything about this http://www.ruralking.com/country-way-5- ... 05-ss.html sprayer? My old, broken down shoulder made it a literal pain to use a backpack sprayer, and I ended up giving mine away. I have been using my *old* faithful 2 gallon hand held, but I'm not happy with how long it takes me to cover my 6500 square foot lawn. This one has a capacity of 5 gallons, I can pull it along rather than have to carry it, and is battery powered. All for a c-note. I am considering giving it a shot, unless someone around here can talk me out of it. Thanks