Airport is small, but very well organized. Though I've had 2 trips coming out of Dayton and both were late departing or arriving. Biggest complaint is they need to police the pickup area better. A lot of idiots staying in pickup too long and not trying to pack in to let more people in.
Definitely not luxurious, but earlier this week it took me less than 10 minutes to walk from the gate area to my car in the long-term parking lot. So, it gets 5-stars for convenience and ease of use. Since it is a smaller airport the amenities are limited, so if you have a long wait there isn't much to keep you occupied. I opted for DAY over CVG this time around as there were actually more options for direct flights back from DCA in the early evening. That surprised me a bit, as my co-workers who flew out of CVG had a layover in LaGuardia on their way back from DCA. At this point, I'd probably opt for DAY over CVG again if I have another trip out to the DC area.
I love this airport. It's small, quick, and has just enough amenities to make it a comfortable place to travel from.