Alitalia had one of the worst J productscfor a while. They refurbed their 777s and A330s, and have gotten great reviews on seats and service. Perhaps UX is the same. I could see how having a run down and dilapidated cabin could rub off on the FAs, and a brand new top of the line cabin might inspire them to up their level of service.
All this is speculation though, but if you take the plunge and come back with a trip report then we can all know whether it's improved or not
Edit: I found a press release from Jun that said they were only modifying 2 of their a330s. Doesn't sound promising for being on the new product. It's being done by AF/KLM so I figure it will be the newer angled lie flats that are on the AF a380?
Edit2: looks like the seat map can indicate which product you'll have
http://www.flyertalk.com/forum/other...330-200-a.html