Wow, the sheer number of people who blindly (yet so happily) drink from the teat of Yahtzee's opinions is kind of amazing. Guys, these reviews are meant to be entertaining--informative is second on the list, if even that. Draw your own opinions instead of dumbly nodding along to whatever you're told, even if it by a hilarious though irreversibly jaded and cynical Aussie. Many times Yahtzee reviews games so quickly that his conclusions are drawn from very partial information; a lot of the complaints here are just plain wrong.
The people complaining about its costume creation: The game intentionally starts you with fewer costume parts than CoH. Why? Because you actually COLLECT costume parts from the armor you find (yes, actual armor, not like CoH where all you get are incredibly dull specific-power enhancements), so your appearance is actually a badge of what you've found or earned. And, unlike WoW or 99% of MMOs where you are forced to continue wearing the item to keep its look, you set the appearance of your armor parts separately from what's actually equipped--so if you think some level 1 armor looks badass, you can keep its look while keeping your actual armor top notch. As far as I know, no other game besides EQ2 and DCUO does this, and it's fantastic for character customization--your appearance evolves but only as you earn AND want it to.
People complaining about combat: The combat in DCUO is far more fluid and timing-based than almost any MMO out there. Yeah, in early levels you can get away with spamming the same combo over and over. Fight something harder (Alert bosses, Wanted poster baddies, endgame mobs, PVP) and you'll realize you need to time your defensive powers or blocking (<--massively underused) expertly to avoid getting utterly destroyed. Plus your energy regeneration scales up as your hit combo goes up, so you HAVE to alternate between weapon attacks and powers--stick to just one and you're either drained or putting out really poor dps. The PVP especially is amazing, because blocking and timing are CRUCIAL. Spam your attack combos against someone blocking and YOU take a bunch of damage and get knocked down, and the blocking guy destroys you while you get up. Spam powers thinking you'll get an easy kill and you're immediately drained of energy and totally useless. The game's definitely not fully balanced yet--but then again, WoW's how many years old, and still not balanced? While DCUO is <2 months old.
People complaining about lack of environment: Agreed, CoH had (and has) this same problem. Cities are pretty boring. But the inclusion of superbly crafted Races for each super movement type makes them wonderfully interactive (again, unlike 99% of MMOs out there), Alerts that take you to the moon, to Area 51, inside Arkham Asylum, etc, add a good chunk of variety. And why complain about flying over areas? If Yahtzee feels like flying takes away from the environment... don't choose flight. Stick to the ground and check it out while moving just as fast. Some of his complaints make no sense.
TL;DNR: DCUO is by no means perfect. But is a wonderfully unique and honestly fun game, especially this briefly after launch (and I don't know diddly about DC comics). What, you never played it and just ruled by Yahtzee's critique? Or stopped 15 minutes in, judging the entire game by your woefully insufficient and biased experience? Think I found your problem.
PS: That story==shitting analogy was indeed the shit. One of the best.