The best aspect of Deltek is signing on with the phone. I am unable to carry my laptop with me all the time - I commute from various places and occasionally forget to log in my hours during the work week when things get busy.
The feature I least like is having to type in the project code and location specifics when logging hours. Sometimes I expect the project codes to be there for me to automatically select, similar to how a computer holds the information for login. Perhaps I am unfamiliar and just have not found it yet thus typing it in every time.
Suggest this to your supervisor to you are able to log in hours through your phone instead of through the computer.
There are no business problems I use to solve with Vision. It is for strictly logging in hours when the loaner laptop is busy.