If you purchase the body-only, I recommend pairing with the 45mm lens. You can find the Contax G2 from KEH here. If you're very concerned about this, I recommend asking your seller for a 1-year warranty, or purchasing through a site like KEH.com that comes with a 180-day warranty.I did extensive research, and found that this isn't very common for these cameras (they tend to be extremely reliable). I had to send mine in for repairs that estimated at around $300. Even after returning to the "normal exposure compensation of 0", it wouldn't fire (just made focusing noises without opening shutter). I had to do one very specific repair: when I switched my camera to exposure compensation +1, my camera's shutter no longer fired.
CONTAX G2 KIT MANUAL
Below, you'll find an example of the accidental manual focus mistake I made (lesson learned the hard way). The noises of autofocusing will still occur, however if you look at your meter internally, it won't estimate distance of your subject if you're in manual mode. I highly recommend checking this before shooting. So yes - there has been one shoot where my camera accidentally got changed to manual focus, and I didn't notice until the end of the shoot. Autofocus sounds still occur when on manual focus.If you're trying to autofocus into a crowd of people that's slightly far away, it may be difficult to figure out what you're focusing on precisely.The auto-rewinding of the film is a bit noisy.It's very difficult to get things perfectly in focus using manual focus viewfinder. I highly recommend only shooting auto-focus.Battery-operated (dead battery = no shooting).