There are better steakhouses in Vegas than Nero's. I highly recommend Delmonico's.
I was by myself so I ate at the bar. The bar staff was friendly and attentive and my food arrived quickly. I had the onion soup ($10) and it was delicious. It was a little salty, but I liked it that way.
I also ordered the 22 oz. bone-in ribeye. The bone wasn't just the eye, it was a whole rib. I ordered it medium rare and it was cooked to perfect doneness. However, this was supposedly aged for 28 days but it didn't have that rich aged flavor. Additionally, it was watery like a grocery store steak. They serve all steaks with Nero's "famous" steak sauce. It was pretty tasty, but if my steak had been good enough, I wouldn't have even been tempted to try it.
I didn't order a drink and my total, with tip, came to $80. For that kind of money, the steak needs to make me drool and not want to stop eating it. I was more than happy to stop eating this halfway through and I doubt I will even finish my leftovers.