Just got back from Las Vegas 2 days ago - we stayed at the IP our first night there. Room was clean, bed comfortable. We arrived about 10 pm due to flight delays, etc but we were given a room near the back - we could look out the balcony to the pool. Room was quiet, no noise from the Carneval Court at Harrah's or construction.
The only thing I didn't like was because of the construction the shuttle/taxis drop you off in the underground parking area and you end up entering the casino via the hallway coming from the back of the building as if you were taking the monorail. We found the signage directing you to check in very poor - had to ask people walking by where it was. In fact , the next day, when we were catching a taxi to go downtown we opted to walk over to Harrah's with our suitcase to get a cab rather that try to find our way back through the "bowels of the hotel" to the pick up/drop off area. Walking next door to Harrah's was no major problem - there is a well lit area to take you from the casino out to the Las Vegas strip and you basically walk the same way you did before to get to Harrah's - only difference is the stores on the right hand side are gone and replaced by plywood "walls". Still a couple of vendors just outside of Harrah's by the Carneval Court.
The casino itself was fine - lots of people playing table games and slots. Did not eat on the premises