What I hate most about painting is the clean up. I usually get the sub $1 brushes at the hardware store because after I use them I basically toss them, I don't want to go through the hassle of cleaning them and those cheap brushes are usually ruined after you clean them anyways.
So I have no experience with high end brushes, but I found these to be really good for the price. I actually bothered cleaning them a couple of time although for the price it's worth buying a new set for each painting project.
They hold their bristles pretty well even after washing. Only had maybe 1 or 2 come loose during washing. Overall nice brushes for the price, especially when compared to the cheapos at the hardware store.