The filter on this press press is not fine enough to keep the smallest pieces of coffee grind out of the coffee. To use this press, you should not grind your coffee very fine. (If you must brew from a finely ground coffee, then avoid this product and stick to brewers which use paper coffee filters.)
If you are still reading, then you may be in luck or not depending on your preferences. There are two kinds of coffee drinkers: those who like it piping hot, and those who like it warm.
If you are in the first group like I am, you should not buy this coffee press. It is made out of thin cheap glass, and it can easily crack if you pour boiling water in it. To their credit, the manufacturer warns you about it, and they suggest that you prepare the press with warm water for a few minutes. (After that you throw away the warm water, and then make your hot coffee.) This is inconvenient at best, and it also wastes energy by throwing away warmed up water. Well, you get what you paid for: this press costs less than $10.
If, on the other hand, you prefer your coffee warm (not very hot), this is a great little product for you, and it is great value for your money.
So I split the difference between two stars and four stars, and give it three stars on average. But you should either downgrade or upgrade the rating according to how hot you drink your coffee.