Overrated, overpriced, and short on luxury.
Showers: water randomly ran hot and cold.
Toilets: can see the need for the power flush, but do we really have to hear every flush near, above, below, and around our room?
Bedding: no duvet (which in itself is no big) but chintzy blanket sandwiched between low thread count sheets is not luxurious.
Mattress: very firm and hard
Tissue: scratchy, thin and definitely not soft (little details count in luxury accommodations)
Seems Vegas is full of high end hotels, the Bellagio is definitely not one.