How is the sound in these apartments? Are the walls thin? Are the floors thin and you can here every step of your above neighbors?

3rd floor is really the best. You can hear your neighbors above you, but not on the side or below.

If you're in a unit below a loft, you can definitely hear your overhead neighbors going about their day. Also good to keep in mind, since this is a pet friendly complex you'll hear barking from units with dogs.

Yes unless you are on 3rd floor and eveb then it depends on the neighbors under you.