The best part of monica so far has been its ability to sync with my google calendar, which makes it easy to keep track of appointments throughout the week! I also like that you can customize your dashboard page by adding widgets from other apps or websites (like gmail).
It's not very intuitive at first but once you get used to how things work in general everything works fine as expected. You should give this app a try if you're looking into organizing yourself via scheduling tools. This will help me be more organized every day since i'm able to see upcoming events/appointments easily through monicas interface.