Most visits to Luxembourg are trouble-free but you should be aware of the global risk of indiscriminate international terrorist attacks, which could be against civilian targets, including places frequented by foreigners.
The highly developed compulsory state-funded health care system of the Grand Duchy of Luxembourg is widely available and free to all citizens, offering unlimited access to residents and boasting modern and high quality medical facilities.
In Luxembourg, Easter is the most important religious holiday, just as it is in plenty other Christian countries. This holiday begins with the Lent and ends in the first Tuesday after Easter proper.