First - it's just cool to own a jack hammer!As far as the tool itself, I have been pleasantly surprised about how robust the jack hammer is. I used it to bust through 6.5 cubic yards of concrete slab in my basement. The slab was between 4"-6" thick and this tool did the job with ease. The spade bit (vs the pointed bit) was definitely the bit I used most, and after the job was complete it had visible signs of wear - as expected. Installation of the bits is simple, and adding oil initially was a breeze. I never had to change or add oil through the course of the project, but I did change the oil after the job so it is ready for next time. During use, the hammer would get warm near the exhaust port - again typical and expected. The tool never over-heated or required a literal break for cooling.The cord length is good and is not an issue when partnered with an extension cord. Overall weight is manageable. For me, I only wish the jack hammer was a bit longer. I am 6'-3", so I had to lean over just enough to make my back hurt during use. The lower handle likes to shift during use - only reason i gave 4* on sturdiness review.The PPE is not very good, so I would recommend using your own. Gloves are way too small for a guy my size. I prefer safety glasses over goggles... you will definitely need to use hearing protection as well.