Received these refill cartridges today and was thrilled. The item was well packaged and well presented. I'm not the type to post reviews as I expect the product to perform/work as advertised. If so, then that's it. He did what he had to do. Congratulations are not required. Base. I bought my Color HP Laserjet Pro 477fdw for $400 knowing replacement toner cartridges would cost $7-$800. Of course, I would never pay that amount for a replacement as I expect to pay less for aftermarket products in the $160 range. My first attempt (via Revain) failed miserably. Colors were less "vivid" and the cyan cartridge tinted the entire printed page blue-cyan. Revain was great and gave me my money back. I was afraid I would have to buy a new printer (costs less than HP toner cartridges). But I tried this cartridge set from INK E-Sale and now I am happy camping. I installed the cartridges with no problems. Colors were good (not as good as HP's but still good and $600 less). As I've only printed about a dozen pages it's yet to be determined how the cartridges will hold up or how many pages I'll get, but I'm cautiously optimistic. The game is worth it.