I use several calendar apps but this one have few features I use:
- quick and easy task creation
- great recognition of places (the best I have seen so far) you can type the name of the place and it will find it
- you can set reminders taking into account commuting time (walking or driving)
The only thing which is missing for me is the block view of tasks,me where you can drag them around when changes are needed.
loocass about 24me: Calendar & To-Do List, v3.4.0