Issue 12 does what City of Heroes/Villains does well, and it does a lot of it. When I complain that there is not much there, it means that there is not much there for me, right now. If you are in the mood for the City of Heroes playstyle, this is possibly the best issue ever.
As a reminder, that playstyle is rock ’em, sock ’em action. No one does it better. You start out strong, instead of fighting single rats. Grouping is encouraged but not required, and the content scales perfectly for any size of group. You beat things up constantly, a non-stop roller coaster ride of smashing your foes. If you have a big group, you can sign up for the bigger foes, and the task forces are adding more big guys for those times when you want to fight eight Elite Bosses at once. Inspirations (potions) drop constantly, so use them for free buffs and heals, and enhancements (equipment) are something you worry about for 15 minutes every five levels.
We talk about the leveling versus raiding games in WoW, but the leveling game is what City of Heroes is. You get twelve slots per server, so make lots of alts, and start over if things feel like a drag. You can group with anyone at any level (sidekicks and exemplars), and if you prefer the playstyle at level 10, 20, or whatever, you can flashback there for as long as you like.
Looked at this way, Issue 12 is perfect. You can buy 24 more slots on each server, with a few freebies: no more leaving your friends and home server. Powerset proliferation adds or expands 20 sets, and the villain epic archetypes give you a whole new story to pursue across the levels. I last counted 364 different powerset combinations; that is now 556. Hidden beneath fluff and flavor text, City of Heroes does just the one thing, but there are more ways to do it than you will find anywhere else.