Tricky to review. 1 it's great value so shouldn't really expect it to be the same as comp level kettlebells. However it's a bit oversized as it's made of plastic rather than cast iron and that means different holds for say goblet squats etc are harder to do. If just using it for swings and traditional holds then it's 5 but if you want the flexibility to do different holds then i'd recommend spending more and getting a non-plastic one.