I have been patronizing this place for 8 months now. They have diesel, propane, RV dump, lots of parking, standard deli & convenience store. And I must disagree with other's review of the showers. The showers were so clean and nice that I forgot to wear my shower shoes! (I've used over a dozen different stalls.) Denny's has free wifi for an hour during your meal. Yes, it's a crap shoot: just cross your fingers and hope you get a good waitress. And don't give ANY of them your credit card to take away to pay your bill. But that's anywhere these days... Twice Denny's wifi hasn't worked when I was there, but Flying J has wifi available for purchase. Easy off & on the interstate, unlike the middle exit with the stupid stop lights that take forever to cycle.
Avoid this place at all costs. My family, traveling east, stopped there and refueled their two vehicles. The fuel was contaminated. They only got a few miles down the road before the engines were disabled. Six other vehicle owners have experienced the same thing and Flying J will not accept responsibility.