What's not to like about Downtown Summerlin? Only one thing... being outside in the middle of summer! Aside from that it has a large number of stores and restaurants, a theater, a farmer's market on Saturday (not my favorite farmers market) and you could easily spend an entire day there including 3 meals and a show!
The mall is kind of split in two with the smaller stores clusted in a downtown looking area and then a large parking lot enclosed by Trader Joes, a big sporting goods store, Nordstrom rack and other smaller stores.
Good place to wear comfortable shoes!