Two things impress me in this chapter. First, the warmth and the extent of the affection expressed in these greetings. Paul clearly goes out of his way to single out those important to him for special notice. If it were not important to mention these individuals by name he wouldn't have done it. He truly loved them. And, I'm sure that love flavors the church.
Second, the command to be wise to good and innocent toward evil (Romans 16:19-20) is the means to the God of peace crushing Satan under their feet. It deals Satan a crushing blow when Christians choose to be ignorant of evil. We can make choices that make it easier or more difficult for Satan. That should make us stop and think.