I've been running Kessils and they really have been a pretty good fit for my tank. Few observations:
- The shimmer is great as you mentioned. And the lighting aside from intensity cannot be messed up. Really like that.
- The shrimp with the new lights were immediately more active. Not sure why that's the case just an observation I had.
- Have to put a little thought into light placement because it's not a panel but rather a small fixture with a lens to mix the color.
- Compared to my old lights these actually use less power over the old lights. Not a huge thing short term but over 10 years actually sizeable. Something I didn't expect.