Is the MUFE a mineral makeup? If it isn't than I don't think you can compare the two. If a mineral makeup isn't exactly what you are looking for, I say if you like the feel of it and the look of it, go for it. Finding a foundation you like is what is important.
I personally don't care for the Bare Essentials as much as I like Everyday Minerals. Use BE for years until I found the EM and I won't go back. After using the EM for a while, I was out and needed to reorder, but since I had some BE left I thought I would use that up before doing the reorder. Big mistake, I used it for a coupld of days and quickly went and did my reorder.
I do not always use a primer, but I know it last longer when I do. I just don't always have time for it. Which is another reason why I like EM, it is very quick to put on.