I was staying in Nu hotel with my husband in July 2014. The hotel is very nice,comfortably equipped,modern furniture(though rooms are quite small and no wardrobe),pleasant staff,delicious breakfast (served sushi and some Asian dishes).
The nu hotel is located only 3 mins from Udine metro station and you can reach the downtown for 30 mins (app.10 stations).you also walk by feet but it's pretty far(around 7 km).taxi is 10 euros to drive to the downtown.
Closeby,there is a nice bar with pizzeria,Bloodymary and Supermarket.
Overall,great experience,very interesting design,pleasant reception,clean rooms.
Would love to stay there again!