I've looked at it on my 4212 with 2010 g2 vision. In my view, it's more of a marketing feature than anything useful to a fisherman.
Sure, some areas will have a dazzling display of bottom structure, but I can read the same info in much simpler formats a lot quicker by looking at the batthy lines, the water patterns, and using the fishfinder. It's also true that most of the areas covered by the charts don't have the level of detail that bwp shows above. Only a few do. It is very area specific.
I find the detailed bathy charts more useful in planning than execution. The problem is it isn't easy to use as a planning tool, it's designed to be real time.
If you like it, great, it doesn't help me at all, but I use it occasionally just to see if I'm wrong about it.
Terry Jason 35, Yanmar 370 hp, Lots of fun at a leisurely pace