Are you guys still playing this?
Yes
The issue I have with the game is that some archetypes or even power sets don't really become "playable" until a certain point in the game
This isnt really true, though some ATs are very support oriented and will struggle alone. Theres a very skill ceiling when it comes to character building.
Also worth noting that nowadays you get speeded up progression with your secondary powerset, so you get a lot of goodies a lot earlier than you did in the original game, making early levels easier than they were before.
It is still a very challenging game however, or can be depending on the difficulty you choose to play.
Another thing is that once you hit level 20 you realise that a vast majority of content is not rewarding enough to run it.
This is true up to a point, you kind of level too fast and end up missing most of the early content.
If it doesn't yield you merits, which you always need more of, or big buck, why bother?
All arcs reward you with merits at the end, so even if a single mission doesnt give you it, the whole storyarc, when played in full, will.
That said what you really need is influence, merits come and go, and there are weekly objectives that reward you merits x2 that will quickly get you more than you need. But influence is how you buy purple stuff from other players, and its a lot cheaper and easier than spending merits on it.
Some quest lines have pretty entertaining writing, so you can do them out of interest if you'd like to.
You should make a praetorian character, some of the best writing in the game is there. Praetoria is the "shades of gray" "hero deconstruction" type setting, a parallel earth that has been all but conquered by a dimensional being, and that is invading earth.
You have loyalist and resistance factions, and can play on either, or sometimes even betray one to switch. But you can also play a scumbag or a good person in both, and each arc comes with its own morality choice at the end. Its just amazing stuff.
Makes you angry to think if NCsoft hadnt killed it, you could have gotten a lot more of that good stuff.
Still, the building aspect is fun as you can come up with a lot of creative ideas, and the game is relaxed enough that almost anything can be made to work.
Everything can be made to work, you just have to have clear goals to hit.