Insist on the outfitter giving you some phone numbers of 2021 hunters that were both successful and unsuccessful. A polite phone call to the previous hunters can usually tell you if the outfitter is legit.
There are some great outfitters up there. But, there are others where the "guides" end up in the hot stands every day and the paying hunters are just put in a tree. You won't know unless you do some research.
I hunted one of the "lesser" IL counties on DIY for almost 20 years due to a blessed relationship I have with a farming family. It wasn't Pike Co, but there certainly was not a booner behind every tree. My little group killed some booners over the years, but I can probably count on less than both hands the number of 160+ deer that I saw during those decades. You will likely see the 130 class deer you are use to seeing.
But, it is always special to try a new place and have the anticipation going in!! Good luck if you go.