I have been running my tank with a pair of Wills 135's for the last couple months. I can honestly say that for black box lights they have been doing a good job. I decided to make the upgrade because I wanted more controllability of my lighting.
Visually, the Kessils have about the same intensity as my Wills. I'd have to get out the par meter to give accurate data as to whether or not there is any appreciable difference between the two.
I have only had these lights a few hours and I can say my initial reaction is the Kessils have a more professional level appearance to them. By that I mean, they have more of a look that you would see on a quality coral shop setup. This opinion is based solely on my own visual observation.
The shimmer is quite impressive, and the ability to have a moonlight function and ramp-up/down is also a plus.
One thing that particularly drew me to Kessil over some of the other top brands is the ability to link multiple lights over multiple tanks and run them all independently from a single wifi controller. The wifi dongle allows you to control up to 32 different lights on their own schedule (this is advertised by Kessil)
BRS has many videos detailing the Kessil a360s and give them a very good review.
My main concern was to get a good intensity light, that would allow me the ability to have a realistic morning, noon, evening and night function while also providing an intensity that will allow my corals to thrive and also give me the intensity I need to add SPS corals to my tank.
