I did my instrument there about 3 yrs ago. My brother and I rented a Warrior 180Hp w/ constant speed prop. We took it up one day just to do some manuevers, when switching fuel tanks the cabin became engulfed with the odor of fuel. We landed at DKB, and called IAA. They yelled at us because we landed there, saying that the mechanics arent to touch the airplane and I wasn't "allowed" to land the airplane there because they are to expensive to fix airplanes. I guess in the past, other airplanes have broken down out there, and IAA didnt like paying for the mx. They explained to me it was the fuel line that runs along the back seat, and that you just need to tighten it by hand and it's "good to go"
My instructor and I went up one day in IMC, we first lost the transponder while under Mode C, then the other electronics started to go on us. ATC gave us the option to continue on to LAF, where there was VFR or to return to DPA. We returned of course, and upon doing so we were told by the owner that we dont know how to use a transponder.
When I was taking my commercial ride with the same examiner I used while at IAA, he asked if I had still rented there, I told him "No" and he replied "Good choice"