Western Digital 4TB Blue Drives WD40EZRZ-00GXCB0

It seems Western Digital has started putting Blue drives in their 4TB Easystore external drives. They had put Reds in them previously, but not anymore. Has anyone had experience with the WD Blue drives? Are they adequate to use with a TiVo, specifically a Roamio, or would it be better to return them and use Red drives?

Western Digital 4TB Blue Drives WD40EZRZ-00GXCB0