Terrible fiddley tedious
No autocomplete except user shortcuts. No back/next navigation in text fields; you have to select a text field, type fully with no spellcheck; click Done, which does not auto advance so you have to scroll to select the next field.
No access to contacts so you have to switch back and forth between apps unless you have every field memorized.
Bad rubber band action not only hides text fields at the bottom, but makes them difficult to select; e.g. The notes field in projects is nearly impossible to see let alone click on.
Very diddly fiddley, tedious and too time consuming to use. Youd have to bill a new client a minimum of 15 minutes just to add them, and another 30 to enter multiple items and tasks as a contractor.
Terrible, even for a first effort.
Batrico about
Billing Hours - Time Tracking