I booked this same day for 3 nights in Monaco and it was WELL worth the $$$
You can get a taxi quickly from the front and go anywhere, but really you can walk the whole city.
This is the only property with a private beach and that alone is worth it to be honest. The staff and service was amazing and the hotel itself is gorgeous. Highly recommend paying extra for a sea view, it was worth it watching all the yachts coming in and out of the harbor.
Overall 10/10 will come back again.