I have still not tried Dolce Vita, but we've had a long chat and coffee with the owner and are planning to go eat there in the next days. It does look promising. But the proof is in the eating :)

However, Cinque Sensi was HUGELY disappointing. We read a good review in Time Out and went there, but it was a waste of what could have been a good dinner.

Among the Italian restaurants I've tried, the food at Il Teatro is absolutely brilliant.
Next to try is Carluccio's.