We stayed at the Boreal for the weekend of the Monaco Grand Prix - we were going to the GP so Nice was the best option. The hotels in Nice get pretty full, so our favourite (La Perouse - where we stayed for a business trip during the preceding week) was full and we moved to the Boreal. Its prices were "adjusted" to reflect the popularity of the weekend - we paid about 60 GBP for the Thursday night but over 100 for the weekend! It was clean, but our room was very small and the air conditioner simply circulated the warm air. We had to sleep with the window open and so the mosquitoes enjoyed that! It was also quite noisy from other guests.

Breakfast was pretty good and fair value at 8 Euro per head.

My summary - wildly over-priced for the facilities, but understandably so given the weekend we stayed. Clean and fairly comfortable, but don't expect luxury.