Han knows exactly who she is, you could see it in his face when he asks her what her name is. That being said....
I waited 30 years for THIS? Seriously? What the flying fuck.
Finn had a ton of potential as a character, and they turned him into a cowardly, lying dummy who was just chasing a piece of tail and was willing to screw everything up and/or get himself killed to get it.
Han Solo, hero of the Rebellion, was a down on his luck freighter captain again, busy staying one step ahead of his debtors while chasing down his ship? One would think that NOBODY would be dumb enough to steal the Falcon from a guy who went to task taking on the Empire, but apparently the galaxy is full of pretty stupid people. And why in gods name wouldn't he just use all his contacts in the Republic to find it, because god knows they owe him a few favors after Yavin, Hoth, and Endor.
Kylo Ren wiped out the Jedi? HOW? The guy went head to head with a failed stormtrooper and struggled! What, was Luke at the bar getting hammered when Kylo went all dark side and screwed up the new order? It's either that, or Luke is a really, really bad Jedi Master.
And good god is the Republic an abysmal failure. What's that, a nifty little offshoot of the Empire is springing up? Eh, just toss some X-wings at it and that should do the trick. No need to throw out full weight into squashing them, it's not like they would try to build another super weapon capable of wiping out entire star systems. Whoops, billions are dead now! Our bad! Vote Republic!
Phasma, ugh. Boba Fett v2.0. Looks cool, you expect badassery, and then PBBBBT! Gone! Better luck next movie!
Rey is pretty much the only character in the entire movie thats worth a damn. Strong willed, experienced, and apparently the only one capable of knowing what they have to do and fucking doing it aside from Poe.
And then there's the shit that doesn't make any fucking sense. Like how the hell did Artoo know when to wake up? Was he on some sort of timer? Waiting for Rey? A random number generator set to wake him up when it hit a certain value? Where the hell did he get that map? And where the hell did the First Order get the resources to build that thing? You don't just find that much scrap metal lying around. You would think some intelligence analyst somewhere would have noticed when enough metal to build a few warfleets was purchased and then vanished. Or somebody would have tipped off someone to there being a planet with a giant fucking hyperspace laser beam build into it.
Just... ugh. All the hype. All the waiting. And then this happens.
Fuck.