How would you like to use it? To show a set of monitors to a friend, or to bookmark it for yourself to see how the selection for a certain set of parameters evolves over time?
For example, should the monitors which you have hidden with the "hide" button also be hidden when you use the bookmarked URL? Should the ones you marked with "compare" still be marked?
I ditched it recently because it beachballs so regularly on the menubar app. Ended up going with BusyCal which, on a design level, is not exactly pretty, but it's fast, very capable and doesn't beachball when I'm trying to check where my meeting is.
Last time I used it u don’t remember any beachbal issues. I periodically subscribe when I need the meeting scheduling software as they have what I consider to be the best system for that I have ever used. Performance was solid when I used it in the fall.
Price seems fine to me given the quality. Personally stick with apple calendar as my needs are simple, but if I needed a better calendar then fantastical pricing seems reasonable to me.