Summary: excellent value for what it is: a medium-duty, light weight jackhammer.I am writing this rewiew to help on decision-making on the suitability of this size/wieght/strength tool. See other reviews for other comparisons. Over-all, I recommenr this great value for what this tool is and have had a good experience with it so far.This item fits in a rare middle spot of medium weight (25 pounds) but good breaking force (45 joules= 33 foot lbs). There is a big gap in demolition-tool strengths between 10 foot-lbs (rotary hammer) and 40 foot lbs (full jack hammer). Similarly, there is a gap in weights of the tools, usually 12 lbs (small rotary hammer) to 45-55 lbs (full jack hammer). Consider how you might be using a hammer. Ain't nobody using a 50 lb jack for anything but straight-down foundation/driveway busting. This 25 pounder can be used for reasonable short periods holding horizontally (I ain't you gym coach, be smart), definitely can work at angles, for instance carving out a cement retainer wall in a garden. But I would maybe not use it for popping out tiled walls or flooring. A lighter rotary hammer tool makes sense therefor more delicate, more horizontal work. This does have a strength dial and SDS heads so you *could* get an angled chisel, and you might be temped to use it on flooring removal, but it is more tool than probably needed unless it is a serious flooring situation.I also found this tool versitile for concrete "carving" situations: trying to round-out/shape a cut as a first pass (eg toilet hole), shaping a retainer wall,or getting close to a foundation cut line using the different speed/strength setting and swapping out heads easily with the SDS sytem. I also carved down at angles a lot with this tool, in a way that would have taken more time with a smaller, less powerful tool. Got a waist high wall to take down and don't want to stand on top of it with a jackhammer? Here you go. But you are not going to lift this 25 pounds over your head in a "new door right there, new window over there" situation. And I found it did just fine replacing normal jackhammer operation on things like typical foundation and driveways. Might be a bit short for all-day work for tall guys, maybe experiment with some longer bits if you are doing a lot of driveways. And it isn't anywhere near as load as commercial grade electric or air jacks. So the stress and strain is less using this for medium-duty jobs.Other reviewers with more experience can speak to the relative build quality, relative ability, and suitability for profesional work, and perhaps more on the limitations. I find it really mobile, versitile, and mercifully light for use in medium-duty demo situations.