Better throw my 3 cents in on this one (inflation, you know)!
Bought some generic carts (two sets): worked fine, no issues, about $4 each. Colors looked same as original Epson carts it came with.
Bought some refillable carts (bottom fill): Worked fine, but the ink slowly leaked out all over the inside of the printer cart carrier, and then the printer. What a mess! I followed directions, but it did it on each cart no matter how carefull I was. I am still cleaning up the mess! That ink gets everywhere!
Bought some refillable carts (top fill): Work fine, no issues. On my second refill right now. About $50 for the set from Ebay.
My recommendations: Generic replacement carts are fine. TOP fill refillable carts work fine. AVOID bottom refillable carts at all costs! May purchase one of the CIS systems from Ebay, as we print a lot and I have to refill about every 2-3 weeks.