Cooler than average.
We live in a desert. It's hot during the summer. It's 90 degrees - at night. People wither in heat like this and so do plants. Lucky for us, we have places like Star Nursery.
I can't comment on the depth, breadth or pricing of their products, since I never window shop; I know what I want to buy or I come to ask why my trees are dying but the weeds are 6 feet tall. The people here are friendly and seem to know what they're talking about (not that I'm a good judge, since my plants and grass never seem to last the season).
The best part about Star Nursery is that their building is clean and cool. It feels like they use a swamp cooler, but hell, it's a LOT cooler than that other place down the street. In the end, it's so much easier to ask questions or spend money when you're not melting.