I pretty much only go here to fill up gas. I rarely go inside the convenience store because if I wanted to eat or buy something, I'd go somewhere else like a fast food joint or a grocery store. The gas station portion of 7-Eleven is good. There are plenty of gas pumps that are usually open as soon as I arrive. There is even a gas pump that is meant for the handicapped on the outer edge of the pumps by Pebble.
The gas tends to be cheaper compared to the gas stations further up on Las Vegas Blvd by a couple or more cents, even another 7-Eleven on the corner of Las Vegas Blvd and Warm Springs. Not to mention it is pretty easy to get in and out of this 7-Eleven in two directions. There is also a restaurant in the same lot so if you want to grab a bite, you can.