I'm continually baffled the farther I get into this game that it's playerbase is somewhat lowish. Every time I log on, I end up finding a new and interesting thing that's either new, or just executed better than other MMOs. This is a very rosy look at this game, and while your mileage may vary, I encourage you to try it out, especially since it's free to play. So, in no particular order..
Power Customization: You can change the colors of your powers if you are a Gold Member. This adds on to the already massive level of customization that your costume can undergo (even as a free player)
Always something to do. Your quest log is rarely empty, and even if it gets close to that point, you can always check your crime computer to literally look for trouble. Quests make up a substantial majority of the experience you'll be acquiring, and many zones will scale to you. Speaking of scaling, this game brings back CoH's popular sidekick feature, allowing your friend to level up to you immediately in a limited capacity, or for you to level down to his/her level so you can quest together. There's RP at many hours of the day for those that are interested. (check the club scene). While PVP in the game is somewhat map-limited, there is fun to be had in CO pvp, although you'd be wise to research builds first before entering.
Surprise takes on old MMO staples. For instance, an 'Escort' quest quickly becomes a sudden boss fight as your character is lured away from safety to presumably 'protect' a character that turns out to be a villain in disguise, after trying to run you through a gauntlet of hostile mobs. In addition, several enemies make reference to their 'MMO habit driving them to crime'. There's a ton of inside jokes if you pay attention to NPC dialogue.
Surprise Quests: Sometimes NPCs will find you. They will literally walk right up to your character and the quest dialogue box will pop up. Apparently there's an emergency that needs your attention. While this is occasionally annoying, it's certainly unique and breaks the monotony of traditional questing and drives home the point that your character is different than normal.
15 minutes in and you're flying. All you have to do to obtain travel powers is simply complete a tutorial. After you've done that once, and you're a gold member, you don't even have to do that. You just create a new character and it gets a travel power of your choice.
Immensely customizable builds. There's a massive level of detail, and for a real challenge, go Gold and try the 'freeform' archetype, which lets you have access to nearly any combination of powers in the game.
Mobile Combat. A large portion of the game's skills can be used while moving (or even while flying!). Combat tends to be fairly mobile with the exception of a few powers.
Quests feel important, never grindy. I still haven't met a quest in this game that feels pointless. Even the tutorial has your defending the city under attack by aliens. There are some 'kill large number of mobs' quests interspersed into some zones, but they aren't meant to be grinded out individually, and are generally 100% skippable and aren't part of the storyline quests. Also, quests are arranged geographically in such a way so that you're never going to have to go to basically the same place after completing a quest there and being sent there again by your quest giver.
Engrossing storyline with many cut scenes voice acted. Much of the game is voice acted, from the lowly minion you first face after infiltrating the sewers, to the dastardly archvillains you face as the game progresses. While the voice acting isn't always the best (Aka Defender's cheesy 'penetration' line, or the voice actress for Zoe villain overacting her lines), the game seems to have at least something going on auditorially once every few minutes.
Engaging combat system. PVE in this game just feels right. It's like they've taken a great single player game, and placed it into a multiplayer game world. While every archetype uses the same 'energy' system, there's enough gimmicks in each archetype to make them play and feel unique. The statistic system is also a step up from normal, where (if you're gold), you can choose which stats you want your abilities to emphasize. While some abilities scale off specific stats, the choice is always yours to make how you want to build your character, and many archetypes support multiple stat builds. (Shadow, for instance, can be built for Cons/Endurance OR Dex/Cons, or even Ego/Cons.) You pick which 2 stats scale your damage and aren't restricted to the 'classic' 'only the power stats do anything'.
Currently Watching: TSW. << Very Eager for a Beta invite. Have experience with Beta Testing.
Not personally a big fan of raiding or current pve endgame mmo philosophy. Nothing wrong with it, I just sort of burnt out on it.
Hardcore raider in wow from Launch to.. about 7 months ago.
Currently Playing: Champions Online.