These guys are awesome. I've used them on 2 separate occasions and both have been great experiences. Prices are reasonable. But customer service is AMAZING!!
They don't charge you for an ink refill unless they are positive it will work. They filled both my black and color ink cartridges. Black was fine. Which cost me $8. The color was going to cost $10 but they didn't think it would work so they didn't charge me for it.
If I could give them ten stars I would.