It is moderately difficult at the maximum setting, where it requires about double the strength of its smaller "sibling" (0-60Kg) and about the same as a heavy grips 250. It is ideal for someone to take on a trip, as it can be used for everything from warming up to regular training (except for low repetitions) with just one device. It seems quality for its price, and the counter helps to provide a consistent criterion for completing the closure. The holes for the fingers make it more difficult compared to not having them, as they primarily force the index finger and secondarily the middle finger to approach the axis of rotation, thus having less impact on the closure.