Even if you didn't like the ending, Stephenie Meyer sure did. In fact she mentioned in an interview that she especially loved the final two pages:
This is the moment, after all of these years, that Edward really gets to understand how Bella feels about him, and they're finally, truly seeing eye-to-eye for just that moment. For me, it was like four books of buildup for this moment, and it was great. (source)
It seems that with this last moment, all loose ends are tied up. Bella and Edward live happily ever after. Their immortal daughter, Renesmee, lives happily ever after with Jacob. Bella's father Charlie, the father of a vampire, finds his perfect match in Sue Clearwater, the mother of a werewolf. Although the werewolf pack splits, they co-exist happily ever after.
So the only three questions we Shmoopers still have are: Will the Volturi make a comeback? Will there be a love triangle between Jacob, Renesmee, and Nahuel? And finally and most importantly for all Twilight addicts: Will the Twilight universe live on? According to Meyer, Bella's story is definitely finished. But she seems inclined to follow other side characters, like Leah and Renesmee, at some point in the future (source). So deep breath, there's hope…