I assume you will be flying into Vegas and driving to Laughlin (about 1 1/2 hr drive)
Harrahs is OK from what I could see ( did not stay there) bear in mind that Laughlin is not Vegas but is less expensive.
The town is down in a valley on the Colorado river in Aug it promises to be very hot( the last time I was there it was 118 degrees)if you can be believe it, hotter than Vegas.
The casinos there are further apart so you may need to do a lot of walking. There is a bus/tram which does the circle of the major places and also you can take the water taxi to get from one casino to the other.
If you have been to Vegas and seen all the sights, then I suppose the place might be for you. Not sure what would make me go back there.
Incidentally the price quoted for three seems pretty good.
Mike