I've been using Rosepoint for the last three years aboard both the Arctic Traveller, and the Scorpius.* It has worked remarkably well on both my desktops used for every day navigation, and also on my laptop used for back up. Tech support has been very good for the few little issues that have come up, and integrating an AIS reciever was truly plug and play.*
The lap top uses a GPS puck from Delorme, and works great, although I had to go to the Delorme site, and download what I think they called an "emulation driver"? Once installed, it worked fine. I like the desktop units for several reasons. First they are very inexpensive since they don't need a lot of memory or computing power.* Secondly, they are never connected to the internet, and never have any additional software, photos, games or music installed on them.* The run as fast as when new, and will never have virus problems.* The laptop is only used for back-up, and since it's often connected to the internet, I feel it's less reliable, but viable as a backup. ..............Arctic Traveller