I've been getting all of my batteries (AW IMR) from RTD for almost a year. Usually have the best prices, great service, and fast shipping.
I broke my usual rule to use only AW brand and got a couple of Efests to try because of a slightly higher mAh rating and being less expensive. Within a month one of them died. It's back to AW for me. They've never let me down. I still have a couple of AW 18650 IMR's that are a year old in a daily rotation and still going strong. (*I'm using a Pila charger which some say uses algorhythms which can prolong battery life).