I stayed at the IP last week for a trade show I was attending at the Sands Convention Center. I am not going to share anything here that the previous 85 reviews have not already said but maybe I can summarize.
-Friendly staff but in some cases understaffed.
-Center Strip location. Across from Cesar's, next to Harras and the Flamingo.
-Monorail station attached to the hotel.
-Older hotel. Furniture and fixtures are from the early 80's
-The IP does have an old, dingy appearance but from my experience it was clean. Everything worked in my room.
-Only a hand full of TV channels on the in-room TV.
-Walking distance to the Sands Convention Center
-Direct Monorail ride to the Las Vegas Convention Center.
-About half the cost of other hotels in the area.
Let's face it. You get what you pay for and the Imperial Palace is no exception. I normally stay a places a bit nicer than this but on the other hand I saved $500 bucks over the five days I stayed there.
Overall It's a decent hotel in a very prime location.