I've had one in my Cessna 170 for a little over 3 years. It cranks over my O360 Lycoming (B&C starter) just fine. If it's cold, which around here is 5-10 degF, and I haven't extensively preheated, it can crank pretty slow. But it always turns over and has not yet failed to start the airplane.
Keep in mind that the 2C (or is it C2..can't remember) rating on this battery is not that long. They have plenty of amps for starting, but not a ton of endurance. As modern RV's are typically electrical airplanes (ignitions, flight instruments, flaps, etc...) this is something to keep in mind. If you fly a lot at night or IFR, do the math and make sure you are comfortable with the result.