Purchased for a workplace training room (one of my co-workers has had one in home for the past year and recommend the xxl for a work trainer). It arrives in two large boxes via trucking company. The base in one and the bag in the other. After reading other reviews, I filled our base with sand. I used a traffic cone and living in MN was able to get a few cheap "tube" sand bags that go in the back of trucks for winter weight/traction. Using a upside down traffic cone as a funnel it easily took four 60 pound bags of sand. Only drawback was the grade of sand produced dust, would maybe have done sandbox sand had I known. Anyways, after reading some reviewers talk about taking hours to fill, ours only took about 15 minutes (needed another ten for dust clean-up though)Once filled the top screws in easliy and it is ready to use. It rolls into place quite nicely and takes hits well. I am 6'3" 210 and have no trouble pucnhing the bag nor feel it is to short for my height. With 240 pounds in the base it doesn't move much, but will slide a little depending on the type of floor you have it placed on. We are using ours next to a battling rope and it is a nice combo to get the heart rate up, fatigue the upper body, and work on striking techniques.
Rating: [5 of 5 Stars!]