My concern with multi unit living is that your home is now dependent on the actions of others. You could lose everything because some dumbass next to you dropped cigarette burning on their floor, or overflowed their tub.
It also just gets messy having that many people try to manage a property together. I lived in a high rise for a year. There was constant bickering over who put the wrong thing down the trash chute or who was using the elevator to move furniture without checking it out first. Everyone had to all agree to building repairs, which was a nightmare, and getting them them done took forever. From my understanding our building was pretty well run, but it didn’t feel like it. I loved the idea of high rise life when I moved in but by the time we got out house I was ready to be done with it.