Played it for a few hours last night and overall i like it for the most part. Some of the things i like or dislike about it have been already mentioned, but will mention it anyhow.
1) I really like the emotion system, it makes the sims a lot more alive imho. For instance, i made a sim couple in the CaS but as i couldn't figure out how to have them married from the get go so i had to level the romance naturally. Took a few real hours but finally got them in love and had them elope. What was funny is that during that time i had the female do a seductive (Or was it flirty?) pose and she turned around and wiggled her buns at her boyfriend. Just really loved the look in his eyes when he saw that.
2) I like the buying screen although i'm not fond of it being lumped together with the build screen also. And for the life of me, i haven't figured out how to rotate the stuff i buy yet. lol (Probably something easy but will look for it later) Haven't built anything yet but do like the more numerous options in the sims 4.
3) Neighborhoods are nice but i do miss the open world aspect in a way and the no loading screens when going somewhere. Granted, it takes almost no time to do loading, but it was nice not having it. Also, i liked the whole town view rather than the grey-white blocks we have now. Haven't even been able to find a town store to buy stuff at yet and not sure if there is one. (Didn't go too far into the game other than the house and romance thing.)
4) Jobs are decent, but i do wish we could follow or check on your sims to where they work and have some influence on that. To me, i feel it's been dumbed down in some respect. It's not bad but they could have made it better i think.
I feel a lot of this will most likely be added in expansions and DLC and such but in a lot of ways it seems a little too consolized compared to the Sims 3. Don't get me wrong, it's not a bad game and i'll get used to it eventually but i feel if they merged the sims 3 open neighborhood and the sims 4 emotions system it would have been a lot better to work with.
And strangely i haven't had much of a problem with the camera yet....