I'd add "difficult to use" to that list. Difficult even for an engineer to use. Terrible. It works great once you figure it out, but it could use a better user and admin experience.
Interesting, used to be in a clan of over 100 people that used it no problem, very few of which were engineers. Not sure what particular functionality held you up?
These were engineers too, and they didn't realize that pasting an http://URL to an IP/Port entry might not jive. So take anecdotes with the grain of salt they deserve because his "engineers", my "engineers" and your "engineers" are all vastly different people.