At least in Houston, renting a car at IAH was literally going to cost double which is ridiculous. So good to have options elsewhere in the city. ;)
I learned the hard way that not all Hertz locations have off hour drop off capability (likely this is for all rental companies). It was partly my fault for forgetting to change the default noon to noon drop off times when booking online, but the end result was a big hassle given our pick up location was closed all day Sunday and didn't open Monday until 7:30 am. We had a 10:00 am international flight to catch and this wasn't an airport location. We changed the drop off to a nearby location for $30 but there it was anything but intuitive. Got it done after much hassle and since I haven't heard anything I assume all is well.