I find MeB#3 to be, as the name portends, much, much greener than UJEM. To me, the citrus in MeB#3 is subordinate to the green stuff. The first time I tried it it felt like I'd just rubbed my nose in a handful of fresh grass clippings. In fact, since I'm currently suffering a bit from hayfever I'm finding it difficult to even wax lyrical about it. It's green-ness is in fact quite harsh at first, and contrary to other reviews I've read, I find it quite strong and long lasting. I do, despite my comments, like it quite a lot by the way, a warm weather, out-doorsy kind of scent.
I guess I'd call UJEM a woodier, smoother and perhaps for that reason more versatile scent, though I have less experience with it than I do with MeB#3.