My HP Laser Jet printer ran out of ink. Buying a new original cartridge was very expensive and not worth it (it was actually cheaper to buy a new printer). However, my printer was good so I didn't want to through it away. I found this company on Kijiji and purchased a rebuilt cartridge. It worked great. At first, it did print a lot of streaks but after cleaning it a bit and a few dozen prints, the streaks are gone. It's been over a year and the cartridge is still printing well.
The 2 folks that were working there were also very helpful and friendly.