I had a mini E but sold it eventually because it didn’t hold enough for me - but essentials like phone, keys and a card holder will fit for a quick in and out.
I love my mini L, it’s my most carried as it’s casual, hands free and can hold a lot! Sometimes I throw my son’s toy in there lol
Both are hands free/crossbody, low key but like another member mentioned above, the mini E will lay flat towards your body and mini L is like a little box that will stick out slightly but it’s small enough not to be bulky.
The mini L is approx. 3x the cost of the mini E retail and where I’m from the mini L is way harder to get
So for me when I’m considering would be how much you want to carry, style, budget, obtainability