I'm in the same boat. I don't do calendaring that much, but agenda is what I use when I'm time blocking tasks.
My main complaint is that I can't get it to sync to my Google calendar. I have tried org-gcal but the gpg encryption never works for me so I just gave up. I would have liked it to have easier viewing on mobile, but that's minor enough that I don't care. Orgzly with notifications on lets me know when its time to do something anyway.