I can't answer your questions about battery condition without seeing the vehicle in person, though I can share my personal experience with the Honda Civic Hybrid, also known as the HCH.
I purchased a used, model year 2005 automatic transmission HCH with 179,000 Miles/288,000 Km, and used the car primarily for commuting to school and delivering food for a local restaurant. I was hard on the car often driving wide open and hooning around like I was practicing for a gymkhana run, and the car never once skipped a beat. During this time of exclusively city-only driving I averaged 54mpg (That's fifty-four miles per gallon!).
I did sell the car and later regretted doing so. At 218,000 Miles/350,000 Km it was still going strong!