A great addition to the printouts would be the full zone information (name, ALT, Frequencies) as displayed on any decent chart. Without this information, the print is useless and even dangerous.
Remember the print is also there in case of GPS failure... you need all the standard information.
I just printed my first trip kit and realized I could do nothing with it, and had to buy paper charts on top of the subscription!
Also, using a MAC, I use a VM and a PDF printer to get the charts.
Layers go away when printing pdf, for example the southend ATZ is a big circle... with no sea, roads, rails, ...
Having a full featured web version would be great (no way to do any selection in the web print options)
F.