I got this Z-Stick Series 2 (DSA02203-ZWUS) in 2013. Even so, it's way newer than my 2413U!
It seems to be working ok, but I wonder if there are any significant or noticeable advantages to be had from upgrading it to a Series 5 or Series 7?
I'd consider the Series 5 too as I've poked around and seen there are some possible issues with the Series 7.
Thanks!
Mike