Don't love: lack of options for roofs and stairs (NEED curved and spiral stairs). That is the biggest thing. Fix the lack of building options and things will be significantly better.
I must agree, it's pretty stupid EA didn't put multiple staircase options in Sims 4 (curved staircases – that aren't spiral – would be nice too). The lack of building options is so freaking disappointing. One kind of staircase that takes up tons of space, one kind of standard roof... You'd think even one building option…