Here it is 100% true that you get what you pay for. They are not sharp enough, resulting in "burning" the wood even with a small load (that is, without pulling the router with great force). For their price, they are OK and of course for completely basic-amateur use.

Amateur use - the knives cut cleanly and effortlessly when you handle them carefully (meaning you don't go for a 1.5 centimeter cut directly, but you go gradually). Very good product.