Charles was BEYOND informative and a champ "putting up" with our shenanigans (even during the wee hours of the night!)
If you are concerned about locations his place is perfection! No rental car needed WHEREVER you desire to roam in SD.
Make sure to avoid picking his basil plant in the corner; no worries- he still forgave us!
Despite the room not having the best ventilation (us Texans like to sleep in colder conditions btw), we made ourselves super comfortable on his automatic reclining chairs- which he did not seem to mind much about (since we just took it upon ourselves to make the living room our room for the 3 days we stayed).
Overall, we like Charles!!