Been there several times, stayed there for three nights on one occasion. For me I think it was once a lovely place totally spoiled by ostentatious displays of wealth, a good deal of it stolen from ordinary people by tax avoiders.
Having said that I can recommend a visit to the Acquarium
Musée océanographique de Monaco The race however was brilliant and I strongly sympathise with Ricciardo who was undoubtedly robbed of a victory by a total stuff up in the pits. I have pretty much given up on F1 but it was a rainy afternoon.