I also use
navionics on my mobile devices and have experience with
Raymarine chartplotters and Standard Horizon chart plotters with
c-map and the last 4 years I have a
Garmin chartplotter with blue charts of all
Med and Black sea...
if I need to compare them - the worse is by far the
c-map, next average for navionics with some big
mistakes especially for greek waters.. and
garmin well ahead of the others - for electronic
navigation and
boat electronics including autopilots etc. from now on I would not move away from Garmin - love it !
the paper charts are just for pricipals- I buy them hopping no need to use them
like
insurance