Have been here during the summer when it gets 110 degress plus. A lot of fun and good scenery.
Bad:
The water is murky and nasty.
Low water levels are making jet skiing, wake boarding, and boating in general more hazardous.
Bathrooms are hard to come by, but just use your instincts.
Good:
An infinite amount of places to set up camp.
Miles of shoreline and geography to explore.
Boat and jet ski rentals right at the lake.
Easy boat launch access.
Of the few large lakes I've been to this one is by far the biggest, baddest, and best of the western states.