I like it a lot. I bought it for its extreme accuracy, and it certainly delivers on that.
I purchased a Citizen Eco-Drive a number of years ago and really appreciated the technology. Not worrying about a battery is one less thing to worry about. After a couple of years of wearing an Apple Watch, I missed having a piece of jewelry on my wrist, so I immediately went right back to Citizen. The Tsuki-yomi A-T titanium watch had nearly everything I was looking for, so I ordered direct through Citizen and had the band pre-sized. It showed up just a few days later and was a perfect fit. I love the watch and wear it nearly every day.
This is my second Citizen watch. I'm really happy with the Tsukiyomi AT. The dial with the red/purple moon is very appealing and nicely detailed. It's very light and looks great. I've already received multiple compliments on it. The only downside is that it can be a bit complicated to set properly. Unfortunately I don't receive the RX signal where I live.
Beautiful watch and incredible features.