Battery hog
Testing the settings in the Watch app took 30 percentage units of battery from my Series 6. I wished to have a three-hour overlay of my calendar as a complication, so that I could see my upcoming schedule on my wrist at a glance. I ended up scrapping the whole app, as none of the options gave what I needed. My best attempt resulted in the event headers overlapping with each other. Not worth any price, in my opinion.