FINALLY had a chance to play this game. Not had any gaming time for weeks, so the anticipation has been killing me. Haven't checked this thread at all.
First impressions? It's better than I dared hope. It's just like SR2, but with the polish turned up to 11. Loving the characters and story, the weapons are magnificent (the Mollusk launcher is genius, but even the basic handguns feel great), and I love the upgrade system. The awesome button is the most significant addition to the gameplay, and I don't think random wrestling moves, flying human-shield takedowns, and sprint car-jackings will ever get old.
So far it seems very Mass Effect 2: it makes a lot of stuff sleeker, more intuitive, and much deeper; but at the same time it loses some of the complexity that made the previous game fun. I miss the interactive TV, wardrobe, and crib upgrade system (yes, SR3, I know I need to press triangle to access my crib - please stop breaking the immersion), the layered clothing, the hand to hand fighting styles, and unlocking upgrades by completing diversions. On the other hand, I love the new takedown system, the upgradable weapons, the varied enemy types, and the new diversions. It's a very reasonable trade off, and it prevents the last game from feeling obsolete. Just like Mass Effect 1/2, I know I'll continue to replay both games for different reasons.
Not that it needs to be said again, but seriously, for anyone still on the fence...this game is so fun. Favourite unexpected moment so far was during the Guardian Angels mission. I took out a car with a rocket, and the driver somehow flew up right into the Boss's face and ragdolled into the chopper before plummeting back down to earth. There is nothing in gaming that has given me so much unexpected joy as Saints Row physics.
Also: secret to making a good looking female? Mouth Depth 30, Chin Depth 30, Chin Elevation 30. Anything else you want to do is obvious - when you fix a nose, for example, you can generally see what you're doing as you do it. But adjusting any of the above three values looks bizarre until you do them all together; at which point you suddenly find you've made an attractive face that not only looks good in the character creator, but also translates perfectly to the cut scenes.