Pretty good
I use this app for planning vacation stays on the Oregon coast. It is informative but the annoying part is every time you leave the app to look at something else (like a browser) the map resets. So if I’m looking at sites for hotels and want to refer to the inundation zone map, I need to re-find the the area I’m looking at every time I toggle back to the app. It’s annoying but I don’t know of another app that has this level of inundation zone info.