I have that knife and did a quick review of it here:
https://www.bladeforums.com/threads/dexter-russell-vegetable-cleaver-chinese-chefs-knife.1615437/
Since posting that review, I've done a thinning of the edge and laid the bevel back just a bit. As I say in the review, I got it as an experiment with the full intention of "upgrading" to another offering if I liked the design. Well, my much more expensive (and awesome by the way) Yaxell finds itself gathering a lot of dust these days.
I use that Dexter Russell like crazy. It was a little odd at first but now I freaking love it. Yeah, it's a little soft but I don't mind at all. Price isn't always an indicator of performance. The fit and finish on the knife is abysmal compared to my Yaxells, Wusthoff, etc. but it doesn't affect how it works one bit.
In no way am I knocking higher priced knives. I'm not. I'm just saying price doesn't always measure performance.
Also, I personally don't think there's a thing wrong with a kitchen knife in the 400 grit range. Properly apexed, it'll slice quite keenly and still retaining a hint of coarseness which can be very nice in the kitchen. What edge you like on your knife needs to be determined by you and regardless of what anyone says, there is no right or wrong answer here. Some edge finishes are better suited for some tasks but by no means should a somewhat courser edge be unilaterally dismissed for a home cook.
As I've said before, Stan Wilson is living legend and he sharpens his kitchen knife on a 240 grit belt sander.