I like Cron, I really do. But I have to be honest, sometimes I resort to the good ol' Google Calendar, mostly because of sync issues or speed. Cron on mobile tends to freeze on me a lot when I try to add new events. Desktop version works great, but sometimes has issues where an event has been canceled but it still showing up in there (even though it doesn't in G Cal). Regardless, it's the best looking calendar I've tried. And I've tried plenty.