If you are going to travel to Europe and upon your return back into the US Global Entry is a must do.

For a recent trip I used Global Entry and it was the best. When you have this service you are getting through the lines 10 times faster than the regular line.

Global Entry is a must do. Here is a great link to get started on a whole new travel experience.

https://www.cbp.gov/travel/trusted-traveler-programs/global-entry