Firstly, fuck the guy sat 2 rows ahead of me who decided to check Facebook for the entirety of the Kylo Ren and Han Solo scene. Seriously? What the fuck?
Secondly, I loved it. It's easily better than the prequels but I'll need to see it again to see how it compares to the originals. I really liked Kylo Ren and his struggles but was a little disappointed when it looked like he was going to turn back to the light. I cried when he planted his lightsaber into Han's chest
Also regarding Rey. I believed that she was Han and Leia's child until she touched the lightsaber, at that point I was firmly in the 'she's Luke's daughter' camp which helped me believe she could channel the force so quickly after realising she had some control over it.