Swede, This is a very pleasant walk now... I lived in Warsaw when they were in the middle of rebuilding the road so I don't have much knowledge about what it was like before. But I was able to find some photos that show the vast improvement.
These images were posted by Sławek in Skyscrapercity's Polish boards:
From
http://miasta.gazeta.pl/warszawa/1,34862,5441432.html
2005
2008
