The ability of this program for taking off drawings, it allows you easily edit all elements in 1 place which makes your work easier when working together as team (2 people).
I like how simple can be use but also its powerfullness if needed more complex tasks are possible too using macros or customizing some functions by yourself! It's not free version so we need pay per month even though there isn't much different from trial one except having access only few days before expiration date!! We have solved many problems related our projects such us site planing/drawings design etc where other programs require 3-4 hours just doing basic things while here everything could take less than 30 minutes sometimes.