As Sandro mentions, I was out of town at the time. Though our check-in time is listed clearly as 6pm, he requested check-in at 11:30am. My roommate rearranged her schedule to get home early and check them in around 4:45pm - as early as she could manage. She indicated that Sandro seemed agitated as soon as he arrived, and within an hour he sent a laundry list of complaints via AirBnb and canceled the reservation, demanding a refund.
I keep my rooms very clean and tidy, as my other reviews clearly show - but I also appreciate the feedback, and will review everything he mentioned in order to make sure we're giving the best experience possible to future guests. Either way, given my experience with this guest - I do not recommend him to other hosts.