The dashboard that shows all of your billable hours for each month in one place makes it easy to see where you are spending too much or not enough time with customers! It's super intuitive and easy to use once you get used to how things work! There isn't anything I dislike about this product so far but if there was then I would love an integration option between the mobile version (iOS) & desktop versions as well! Great tool when billing out client invoices.
Tracking times spent working directly with my customer has been made easier by using trigger - allows me to create tasks/projects which helps keep everything organised without having any paperwork lying around.