I'm thinking about purchasing a Epson WorkForce WF-7520 from CobraInk to replace a Workforce 1100 that I've been using over the past couple of years. Have others here had a good experience using the Workforce 7520? I really want to go with a CobraInk CISS product due to the ink cost savings. I've also had a really good experience using the WF-1100 - but it's been mis-feading a bit lately so I'm looking to make a change. Thanks.