Is any one here using Swipe Eftpos system , as recommened by Spark

How do you find it, any issues?

I tried to set it up on wifi, it was VERY fussy as to what wifi access points it would connect to.
Wifi extender : swipe would not connect to wifi
Wifi homplug : swipe unit would not connect to wifi
Telecom supplied wifi modem/router:swipe would connect

I cant see any reason the swipe would not connect to the wifi access points I had setup : phones & laptops have no issues with the
homeplug wifi or the extender unit. I tried new passwords, WPA2, WPA .
Just wondering if anyone else has had issues with them ?