There are a lot of features I really enjoy in TS4s build mode. I really love being able to move the whole house or rotate it. There are a lot of things that make it easier to build. Like the room/platform/foundation tools. It's easy to make a room and drag to the dimensions you want. The roof tools are also easier, the pillars are awesome and can be inserted into fences, the stairs can be configured easily, the windows and doors update so they can be placed anywhere, etc. There's a lot of tools that make building easier.
However, as someone who started playing with TS1 and ran a building fansite for TS2, I was and am still used to build mode from the previous games. I like being able to make split level homes and attached garages. I like thinking of a new design and actually being able to execute it. There have been countless times when I'm thinking of a design and I realize there's no way to do it in TS4 (before the platforms and stairs updates). Now I'd say when I play TS2 and TS3, I don't really like building in them anymore because it's not as simple as it is in TS4.
The only thing I absolutely hate about TS4s build mode is the floor tiles being tied to a room. Sometimes I just want to place floor tiles in places that don't need a room. Or remove tiles from a room. But no, now I have to make that one floor tile its own room and now the cornice is inside the house instead of outside! HULK SMASH!
