I love decorating my houses, but there are a lot of things missing for me.
1. More slots, or not so limited with the sizes. OR:
1.5. No slots, free movement to place your furniture. On a type of grid.
2. Crafting facilities in the neighbourhood.
3. Maybe even an auctioneer.
4. House bound to account. So not only one owner, all your characters own that house, so no problems with removing your chars anymore.
5. A stable in the neighbourhood with swift travels to the mayor cities.