Hi helen,
My family enjoyed a fabulous 2 weeks in Luxembourg two years ago. We stayed at Gravenmacher at the southern end not far from Trier in Germany.
We struggled to find many others that had spent time here and we saw very few Brits right through the holiday. We enjoyed good food, superb cheap beers and wines and the cheapest fuel in Europe.
The welcome at the site was questionable, but after a short while we won 'Eva Braun' over and we became good friends by ensuring that we bought plenty of beer at 'Eva's' bar, but the site was very convenient for the town and for the superb trip (cruise)up the Moselle.
We visited Bastogne in southern Belgium (Battle of the Bulge/Band of Brothers and all that - the village of Foy and the Bois Jaques still bear the scars and the foxholes remain visible on the edge of the woods).
Sorry to go on but as you can see, we really had a good time and will definitely return one day.