input: [Pros] Security: Having neighbors around makes it a lot easier to lock up and leave for a vacation or an extended period of time. Also, condominium buildings often have security features, be they buzzers or a guard service. This is particularly helpful if this is your second home, and you are only there for part of the year. [Cons] 
output: Community living: Shared walls and common areas mean that you are more likely to hear your neighbors or run into them more often. Also, as part of the homeowner’s association, you will have to coordinate with neighbors to come to decisions regarding the common areas.