Hi!
.... excellent unit. My only caution would be on uploading/downloading
waypoints. If that function is important to you, make sure you have
software available before you purchase. It's been my experience that
much of the commonly available software for upload/download does not
support the Furuno GPS units.
I´m not really sure, but.....normally - good - GPS units accepts simple nmea
data.
So....every software which sends nmea should work.
And any - professional software which do not send nmea is - bull**** - !!

I use Maxsea and Maptech´s Offshore nanigator. Both works fine with my old
Furuno 31!!

cu Michael

sorry if my english isn´t so good ;-(