What do you like best?
Ability to book a flight, hotel, car, etc are all very easy and well done. My favorite part, what sets it apart from others, is the expense reporting features. Especially, the ability to upload pictures of receipts directly to my account, so that I can later fill out an expense report on a desktop computer, is extremely convenient. I have had only one trip and two experiences with deem (one for travel, one for expense reporting) and I enjoy using its features.
What do you dislike?
There's honestly nothing here to dislike. I would be hard pressed to offer suggestions for improvements.. I might recommend adding the ability to upload multiple receipts or other photos for a single line item, this way a user doesn't have to line up a lot of paperwork on one photo or combine photos should he/she have multiple documentation for an expense.
Recommendations to others considering the product
Seriously consider the expense reporting feature. Everything else can be done around as well by the competition, but the seamless integration of mobile and desktop applications allows the easiest, fastest, yet most transparent experience with expense reporting.
What business problems are you solving with the product? What benefits have you realized?
As an employee, it is very easy to use and keep track of expense reporting, and get compensated for it if I pay out of pocket. My employer also appreciates the transparency and easy tracking of expenses. It gives a perfect balance of good record keeping and oversight, without micromanagement. I was very quickly reimbursed for my out of pocket, which was useful as a new employee when my company card had not been fully set up.