I very much like the Lightmap Sea. We own a home on a bay off of the Pacific Ocean, so knowing (eg) the tides is important, and normal tide clocks do not work with Pacific tides.
The wind and wave information is not as useful, as it tends to report that info from the ocean side of the peninsula we're on, rather than our location. This is completely understandable, and I guessed it before I ordered the LightMap. They can only display the info that's available online. While there's a tide station nearby, there is no weather data available, so that's that (there is non-federal info, but I understand not wanting to wire those sources into a long-life monitor).
The display is information-rich, but not 100% intuitive. I will eventually learn what all the various symbols and colors mean. I'm thinking of making a shortcut card to place near the LightMap to help out, as the manual is many pages long. Additionally, the richness of the display makes it a bit garish for those less interested.
All in all, this is a device similar to one I've considered building myself (retired computer engineer). It packs a lot of info into a small amount of real estate, and I think does it effectively. I recommend it.
I absolutely love the LightMap SEA Station. It gives me real-time updates on wind, waves, tide level, and water temperature in an easy to digest manner. The wind indicator is great, showing both speed and direction, and the tide clock is really intuitive. Setup was really easy, just connect to the wifi network enter your credentials and away you go!
