Pros:
+ very colorful, unique designs that probably will not be confused with other people's luggage
+ much, much more durable than the flimsy paper luggage tags given out by airlines
+ loop closure feels pretty secure, haven't had any issues with it yet (knock on wood)

Cons:
- a tad pricey

This company makes a variety of other designs too so check those out if you don't like this particular set.