I'm just a handyman around the house who can build and repair a bit. This cordless angle grinder met my expectations. Calm. He's strong enough. I have many 19v ryobi tools but this one was much better for the price. If you're considering Ryobi, it's more than half the price and doesn't cost anything. It was just a tool. If I had bought discs and batteries, the price would have been way beyond my budget. This coffee grinder came with two 2.0mAh lithium-ion batteries, a carrying case, a charger and four discs. That's what I mean by value. As for durability, I'll have to update this review in a few months after using it more, but I won't be doing any commercial work with it, so I think it'll be fine for the rare times I need it such a tool. .