I've had a DataHub for about a year and a half, and I wouldn't recommend it. It's basically an overpriced
GPS tracker. I agree with
justinfinity that it's buggy and not very stable. I will eventually remove it and use something else to update my position.
The AI polars are garbage. There isn't much "AI" to it. They basically tracks your sailing performance and generate a polar for each trip. It's not even averaged out over multiple trips. I turned it off after it was producing very inaccurate routes.
BTW, if all you want to do is track your
boat and have it automated, and you have a
Victron Cerbo, you can install Signal K and use the Noforeignland
tracking for free. Search the
internet for instructions on how to set it up.
Coronado on Noforeignland