Review on DORMAN M630580 Brake Master Cylinder by John Pineda

I had sponge brake pads two months ago and replaced them with this Dorman master cylinder after which I noticed a slight improvement of about 20% for about two months. Right now it's very spongy again, even worse than it was before this Dorman master cylinder was installed. Ps: I have checked all other brake components and they are in perfect condition. I also changed and bled the brake fluid several times.