I didn't look at the reviews until after I purchased this bag at JC Penneys. I was really concerned about it after reading all of them... but honestly so far so good. I have had it for about a week now and its holding up great. I am 5'2. 170 lbs. When I hit it, its not a lightweight punch or kick. Has a bit more of reflex than I thought but I am getting used to it... I am just a beginner and was looking for something to get me used to boxing more or less. I put on my ipod and go to it. My biggest issues were around the setup, the pump didn't work well so I had to blow it up by mouth which took forever, and then putting sand in the bottom, what's the deal with the small hole...? what? lol. Took me 4 hours to set up, hence the 4 stars. If you buy this make sure you are putting in enough air to expand the bag to fit the cloth, it doesn't seem like it will go, but it does!