Experience with Western River Calls

Has anyone had any experience with the Western Rivers Mantis 400 call in particular? What is the quality of Western River calls?
I've had this one for many years of course FoxPro was all the rage this one was a little less expensive. Hopefully I will buy a lucky duck call sometime this year
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it works great for me for many years only problem I've ever had is when you shut off the unit it will still drain the battery pack so I must remove the batteries at the end of the day
 
I have the same call 338 dude has pictured. Works well but have the same experience with having to remove the battery pack.
Western Rivers customer service was not helpful.
 
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