In order to save time and still have a great work out, I created a bedroom into a gym. I used to love hitting the bag at my local gym and since I no longer went there, I decided to buy a B.O.B. Hitting B.O.B feels good, getting aggression out and breaking a sweat. It does what I needed it to do so for that it gets 3 stars. The only issues I have is weighing it down with sand and also the noise it makes when I hit it hard. Trying to put sand in the B.O.B, was a mess and took about 3 hours. It has a small hole which you need to funnel in four 50lbs sand bags. Until I got my rhythm and proper method it was just time consuming. The noise come from me hitting the bag so hard it lifts up a bit and slams down on the floor. Unfortunately I live on a third floor apt so my concern for my neighbors downstairs makes me hesitate hitting it hard. I added a workout mat which helps reduce the noise. I work out in the morning and it's been 3 weeks and no complaints, which is good. I wouldn't recommend working out in the evening if you live in the same situations as I do. Unless you hate your neighbors. Overall B.O.B. is a good buy just expect to spend sometime preparing it.