My brother is putting together a quick trip to Nice for him and his wife. They are arriving friday morning and leaving monday afternoon. Basically they really know nothing and don't have time to do much research so they will just take reccomendations. The flights were booked without any research because he would have lost 7 day advance in about 20 minutes so he just booked flights blindly.

Quick questions are stay in nice, monte carlo or cannes. Any particular hotels. He would probably like to keep it around 100 euros per night but will go to 200 or so if necessary. Are the beach and the city center close, and if not which do you stay at? I've read some decent reviews on Boscolo park and its affordable. Is this decent?

What about a car. Looks like it will be about 250 for the 3 days. Is it better to rent or more convenient to use taxis. If they stay in nice is a night in monte carlo or cannes a good idea.