Bear in mind that there are two places called Luxembourg (actually three).
There is the Grand Duchy of Luxembourg. Its capital is also called Luxembourg, or Luxembourg City.
Then there is also the Belgian province of Luxembourg.
F D Roosevelt received the exiled Grand Duchess of Luxembourg during World War Two; the Battle of the Bulge was fought partly on Luxembourg's territory; a substantial part of the the US Air Force's transport command is based in Luxembourg. The Grand Duchy has longstanding and extensive links with the United States.
I enjoyed it! We (I was with a large group-UWP Cast D) spent the day travelling through it, put stopped off at a really fantastic old place (can't remember if it was an old castle...?)out in the country. The whole country was beautiful.
The stop was a short rest stop break and a chance for alot of folks to come together (we met up with another large group there-UWP Cast B-Fall 1986)...while everyone was on a wonderful journey. So...I know all have the same great feelings for Luxembourg...that I do!
Yes, it's steel industry has been highly developed since the 19th century. The banking sector, however, has become a large employer. In some ways, Luxembourg is the like the Switzerland of the European Union.