That said, WGU does not do traditional GPAs, as I recall, which can cause issues with transfers. It's more of a pass/fail. Trying to transfer credits is generally not advised, as I recall, instead you would want to complete your degree with WGU.
That has not been the experience of my peers so far, granted I don't know anyone who went to Harvard intimately enough, but I know quite a few people who went to well regarded masters programs after graduating WGU
About to finish the WGU BSCS program myself and have made a lot of friends in the program along the way. Many, including myself, that choose to go to grad school look at Georgia Techs OMSCS program, which is a very solid/reputable program.