I have just worked OZ1HXM on 2m SSB, using 100W to a SuperMoxon antenna in the attic of a house on the west coast of England with a lot of mountains between here and Denmark. The fact that he was using 200W to a pair of 10 element Yagis must have helped a bit!
This is my first European DX on 2m and I am thrilled to bits. I can only imagine what the band must be like for people with a decent VHF take-off. OZ1HXM is the only station I can currently hear on the band so there doesn't seem to be much chance of working anyone else.