I don't mind the Millennium Falcon being in the movie but I think part of me wishes it was handled just a little more "sparingly" for lack of a better word.
It's hard not to look back at how it's inclusion was just kind of... convenient I suppose? For one thing; why is it so conveniently located on the planet of our protagonist? Plinkett already brings up how it doesn't really make much sense for the First Order to do a bombing run on Jakku when they really want to recover BB-8. Scout units/ships would make sense to send but not so much combat ships. It creates a really contrived reason for the Millennium Falcon to come back into the picture and have an action sequence considering Rey and Finn don't require that additional urgency to leave the planet - the former already wants to deliver BB-8 to the Resistance and the latter already wants to get far away from the First Order. Also the Millennium Falcon being introduced so early creates kind of a uh, clumsy way to introduce the fact that Kylo Ren is Solo's kid, though I suppose you could argue they wanted to get that one out of the way quick since it's the most obvious Star Wars "twist" they could reuse.
I think it would have been much more "earned" if, once Rey and Finn met up with Han in their quest to get to the Resistance, the Millennium Falcon is only mentioned in passing conversation - much like how Luke questioned Obi-Wan about the Clone Wars and being a Jedi etc., Rey/Finn could be talking about how Han is the legendary pilot who flew the Millennium Falcon and fought alongside Luke. Han could talk about how he lost the ship or whatever and it'd introduce a chekhov's gun. Newcomers to the series would be informed about how that might be a big deal moving forward and veterans would probably feel a slight sense of nostalgia but also a bit of a disheartening feeling knowing how the Star Wars universe has moved on with the iconography... until the third act assault on the Starkiller Base, when they mention they need a ship to break the defenses, and when the Resistance might reveal that they succeeded in recovering the Falcon - maybe something Leia had the Resistance do as a sign of affection to show that she still really cares about Han. The newcomers can get excited about that one object mentioned in passing finally getting payoff and the fans get excited to finally see that awesome ship get brought back in a purposeful capacity and a potentially cool action sequence somewhere in there. One last rodeo, before Han inevitably kicks it.
I think I would have liked that just a little more than what we got, really.