It's easy to use, it has many useful features (including some that are not available in other PM tools). You can set up your own templates; this makes things really convenient since you don't need to rely on their library of predefined ones - I have made quite a few customizations myself. There is also no limit as far as number of people who will be able to access information stored with my account/organization within one workspace or folder structure. The interface could look more modernized but still keep its functionality intact. Some users may find it difficult using such software if they aren't familiar enough with MS products like Excel etc., which would make me wonder why we should even bother! We're solving problems regarding our internal documentation process by making all team members' info accessible from anywhere at any time via web browser.