More like Iron meh 3...I wasn't impressed at all, and while i've probably seen the first two films a hundred times a piece, I will probably never watch this one again.
Entertaining but underwhelming.
I felt the same way going through a marathon of the first two, then avengers and IM3. The exact sane way. I knew I had to take the lady to see it, and was tempted to pay for something else and sneak her in to see it. I didn't want to reward the cheap jokes and poor choices. I am still unimpressed and it has cast serious doubt on the direction Marvel is going to take phase 2. I may skip Guardians, if they were scared to ground IM3 in the dirty realism his character and the cast could support, I can't imagine what they'll do with a talking Raccoon.
All that said I did see it again, paid full price for 3D, have them my financial support, and enjoyed it so much more. It's still the worst of the modern Marvel movies (spawned by Iron Man) but taking the jokes out, no longer expecting it to be great, or even good, I was able to enjoy it. I was a Shane Black fan, but not anymore. I was a Marvel cheerleader non-stop, not anymore. All I can say is, thankfully Nolan turned Batman and we've got potential with Man of Steel, please do JLA, avoid the urge to go childish and campy and make a great series of movies.
Did I say I hated it? I did. Don't pay to see it again, please, but it is better in a second viewing.