Bought this recently and have used it multiple times, does the job well. The other review mentions it doesn't mix properly but I've had no such issues myself. Comes out smooth with no chunks.

Construction is good and it feels solid. The metal doesn't look glossy like you see in the picture, it has more of a matte look to it in person which I prefer. The lid has a plastic part attached to the underside (I assume to help with mixing) that I don't think is removable. Makes it a bit awkward to dry it but you can just let it drip dry after a hot water wash anyway.

Good quality build but poor design for shaking. Will not combine mass or whey into a creamy / mixed drink in either milk or water. Supermarket brand shakers with different grid patters do a much better job then this. Can not recommend (Unless you like a chunky drink haha)