I've had this unit for a few months now. I bought it for installing T-posts for my horse pasture. My ground has about 2-3 inches of soil before hitting hard shale and bedrock. This post driver has had no difficulty driving T-posts into the ground.
The biggest downside is that it’s quite heavy. While it can be operated by a single person, it’s much easier with a helping hand. It fires up on the first pull every time. I only use the pre-mixed gas from the store, and it runs perfectly on it.
The unit is as described and offers good value. The carrying case, with its transport wheels, is perfect for moving it around. Ultimately, I would buy this again and recommend it to others. The customer service was excellent—I needed a plastic sizing ring replaced, and they resolved it promptly.