Few updates, as I am here now on business;
1. Re Salomone has closed down, replaced by 'BaGhetto' - a branch of the Rome chain. Amazing food, really tasty, great experience. I had a tasting menu for 45 EUR which included a starter of fried zucchini and dried meat, followed by pasta with meat and tomato, then amazing lamb chops and 'jewish' artichoke (ie fried), followed by desert of choice. I thought it was good value considering the quantity, and that there is no need to leave tip or pay taxes on top. Note hechers is 'chalak bet yosef'
2. Denzel is also excellent IMO, slightly lower class (and cheaper) food but good quality and easy to eat. I had kebabs and mushrooms, hamburgers also look really good. they also do takeaway. Same hechsher as above.
3. Carmel (milchik) was nothing special at all, though I had pizza (bad choice)
4. My Kafe has good gelato and snacks
5. Various kosher shops (eretz and others ) have good selection of groceries, you'll find whatever you want (great cheeses esp)
6. Geletaria Ecologica was OK, well located and clearly marked which gelato is parev and which are milchig (non-CY). note that this is not obviously kosher, until you look for Teudah. Maybe I didnt choose the best flavours but was not overly impressed. Note that cones + frozen yoghurt aren't kosher.
Work put me up at the Mariott, which is only few hundred meters from 1, 2 and 6. Hotel is fine, 4*, rather old fashioned. Around 30 minute walk or short meto to city center.
The other kosher places are approx 1-1.5 mile away in the opposite direction to city.
Any questions let me know, I will try to help.