AWe went there about a year ago. We stayed in Pidgeon Forge sometime in April and there was some kind of "rod Run" going on and we spent most of the time being stuck in traffic or waiting two hours to eat while the locals were extremely rude (I have never not left a tip at a restaurant before then). Avoid that weekend and area if you can. We did get to go down to the park, tried to park and cook out but all the picnic ares were full, they were right off of parking lots that had curbed off parking like at a mall. We did get to go down by cades cove and someplace near there is a small horse ranch where you can ride horses and carriges so that was about all we got to do.
You should also come back up through pidgon forge to leave though as on the main road just a little north is the coleman outlet store and smokey mountain knife works. Imagine bigger than walmart size buildings one full of camping gear and the other knives. Be prepared to spend the day there and have a couple credit cards handy
I want to go back down again and the advice I was given is to stay on the NC side of the park away from the tourist trap stuff so we can actually see the park.