This is well designed, simple and easy to use. It’s made of mostly glass, has a base surface that captures sediment to keep it out of your drink, and has a great coffee filter that tips to drain using the lid. Great product overall. 
Where they fall down a bit is the instruction manual and the lack of explanation of how much coffee and water to mix. The only video I could find says fill to a barely visible line on the filter but the that would be four times the coffee the paperwork suggested. I’ve been going with 1.5 cups off grounds and fill to the top with water and getting decent results so far.