Simple, efficient, complete
This calendar is extremely well designed. The UI is very very natural to use, so much so that if I dont know how to do something I guess and it almost always works. The UI is simple, elegant, and customizable in all the ways I need. I Have used quite a few calendar apps and like this one best. Ive been a Pocket Informant user for a few years, but this UI stole me away and I eventually just deleted Pocket Informant.
I use Refills (dumb name) for both iPad and iPhone and find them both very easy to use, though the interface is better on iPad because of the size, the iPhone interface is perfectly serviceable and I have no complaints. I sync with google calendar so I have the my calendar on my iPad, iPhone, and Desktop. The sync has worked flawlessly and is quick as well.
The task "todo" function is obviously an afterthought, functionally barren and not useful at all for anyone who uses todo as an integral part of work life. Perhaps they will add functionality at some point but at present there is not enough there for it be useful to me. The todo part of this app is the reason it gets 4 stars.. The calendar itself gets a very solid 5 stars.
You can try the Rees version to get a true feel of how it works but I think this app is well worth its high price. I would recommend this to a friend without hesitation.
Eightyeights about
Refills - Calendar & Tasks, v3.1