Fun to Play - but not to Stay.
You get what you pay for - Harrah's is not the worst place to stay, it's a great price for the location Center Strip, but the rooms, especially the bathrooms are small (though you do get a small balcony if you stay in the Mardi Gras tower. Their check in desk is hands down the slowest in Las Vegas (i've stayed all over the strip, and it's not even close)
The hotel amenities are among the worst on the strip. Their pool is super small and has maybe 50 chairs available (great for place with close to 1000 rooms). The spa was just awful, standing water everywhere a sauna that never got hot and a hot tub that all but required quarters to keep it going.
On the brightside - Harrah's is a fun place to gamble, the dealers are fun and table mins are low and the cocktail waitresses are on top of thing. Their sports book, while not the biggest is pretty nice as well.