It's still going, IMO still not stale (without going into spoilers: the setting really helps), even though it is also scheduled to wind down (tying up all loose threads) in the next 1-2 years.
As a teen I read web-comics like GPF, Userfriendly, Sluggy Freelance religiously, which really helped my English and my nerd career. Finding out about all those big web comics dying is the first time that I genuinely feel in my core that I am getting older... :(
