For DME I use exclusively Briess (shop local, baby!). I looked at the Lovibond/EBC numbers and as far as I can tell, M&F XL is the same as Briess pilsner. There may be subtle differences in the barley strains, malting practices, etc...but it *is* extract brewing, after all.
It doesn't hurt that the Briess 50#'ers are $60 cheaper from my preferred online shop (NB).
Natural 20 Brewery
Yes, that *is* beer. Water, malt, hops, and yeast mean it's beer. Go ahead and try a glass...