I have used there wrapping film but not there print media. The wrap media is not bad alittle more tacky than i would like but it works.
As for your prints you may need to use another profile sometimes if you are using canned profiles you can use a profile for a different material example we used to use a 3M IJ35 series profile for printing on Oracal 3640 it worked great.
Alos I believe your printer is the same as mine I have a JV33 and the native resolution is 540X1080 try that and see what you get.