Agree with all above and especially what Bob McC says. Nice is generally a very easy place to like, and even with my crap French is easy to deal with. We got a day trip to Monaco/Monte Carlo which also included a foray across the border into Ventimiglia with its retail opportunities for leather goods, hard cheeses , olives etc., etc. Just a mini bus along with a few very friendly 'Mericuns and some rather less gregarious and very noisy French Canadians. But all good fun. We stayed in a cheap but adequate apartment in the Avenue Des Fleurs and had several evening meals in the Barracuda Restaurant in the Rue Meyerbeer. Decent food and reasonably priced.
I had a couple of half days on the beach and swam in the cool but bearable water.. in October.
Also, my neice's 'in laws' own a very nice apartment in the rather posh Rue Paradis, which we intend renting for a week or so soon. And Nice is barely a two hour flight from Liverpool, so presumably commensurately less from Dahn Sarf.
Go for it.