I have been using Doit for around 3 years, one major problem I encountered is I cannot see the estimated time and total estimated time by just looking at the 'task list' homepage, many times the older tasks get piled up, if I drag some of them to today's list, I am not sure whether I can finish it or not.
It will be very helpful if the estimated time is always displayed on the right side of each task item on the home page and also display today's total estimated time. Please see attached file for details.
Based on the estimated time, Doit can track users' estimation history and advise the user if he/she always under/over-estimate tasks.