Probably the best thing I can say is, there isn't anything I don't like about this s/u. It's small and compact, doesn't leak or seep, the flavor is good as in all KFL's. Now, my experience in the past with KFL's has been with just the KFL Lites v1, an v2's.
I had in the past, two or three full sized Kfl's that slowly became spares in the drawer as I tried other more compact atties which I prefer. I like bottom fill tanks over top fill, less chance of leaking while filling up, and a KFL bottom fill ain't that inconvient to do. I still have a few other atties in use, but now have 5 of the KFL's in use, with the stock to add more when needed. I no longer have to see what's new out there in MTL atties. I have what I need.
This answer your question @Two_Bears

I had in the past, two or three full sized Kfl's that slowly became spares in the drawer as I tried other more compact atties which I prefer. I like bottom fill tanks over top fill, less chance of leaking while filling up, and a KFL bottom fill ain't that inconvient to do. I still have a few other atties in use, but now have 5 of the KFL's in use, with the stock to add more when needed. I no longer have to see what's new out there in MTL atties. I have what I need.