What makes a GMOD server good?

I just recently opened a DarkRP server, and I was wondering what are essential addons and what makes a server good. I need advice, I'm new to hosting servers.

From a rp players perspective its good moderation mainly. Fair rules and decent community.

A server owner above the age of 16, or well, at least 16

I think the enjoyability of a server is subjective, just ask yourself "what would I want if I was a player joining a new GMod Server?"

Unique map scripts and Addons make the server exclusive and more interesting for players

Above all, a good management team (often connected)

buy the scripts on gmodstore and create a server on steamcmd

Good management and variety of ways to make money without being too dull. A good set of regulars that frequent the server also make it much more fun.

Anything unique and general just not crap.

DarkRP is a way over-saturated gamemode.

Interesting content, diverse farm and not too high prices.
It is important to have an adequate composition.