I recently bought the hammer drill, partly because it shares the 24V battery with a Greenworks pole hedge trimmer I got as a gift. The keyless chuck works flawlessly. The torque/speed adjustment feature is great for specific jobs. The battery delivers plenty of power for quite a while and recharges quickly. I dismantled a VERY high "tree fort" with it, which would have been much more difficult with a "wired" drill.
I bought this because I was tired of searching my husbands tools every time I needed them for minor home repair or crafts...the battery life is great and the carrying case is a lifesaver for keeping everything organized! I even like the feature that hooks it to your pocket, belt, etc. when you're on ladder and need both hands but have no where to lay the drill. Since getting it, my husbands old cordless drill is collecting dust in a garage while he borrows mine!