Honestly, it's hard to beat WM's Bad Batch minifigures (Echo was in a separate Star Wars minifigure set); those were just soooo good! Although, if there is a brand that can beat WM's Clone Force 99 minifigures, it's probably Koruit. In the end, this is great for all Star Wars fans as it presents you with more options or even combinable options.
So far, what this KORUIT set has as advantages are: more detailed gun accessories, Echo's arm, and armor or shoulder pieces. Plus, that Echo in black armor is the first time we're seeing it.
If you don't like these though, then you can wait for the official Lego Star Wars Bad Batch set (there have already been leaks). It will probably be released in time for the new Star Wars Bad Batch series coming soon. If you want budget, easy-to-buy, alternative Lego Star Wars Bad Batch clone troopers though, then at least you have these as options in addition to WM's already-released ones.