If you haven't already tried BM since posting this question I want to offer a little input.
I used to use BM for a couple of years to even out my complexion. I loved it because it felt so light and looked so natural, no lines! What comes with this feeling of complete lightness is its lack of coverage. It does cover fairly well but I have found other products that work just as well or better. For a while I switched to Tarte pressed powder and liked this better. Tarte is known for its commitment to natural products and its neat packaging.
I recently switched to MAC Studio Fix and love it so much more than BM. If you are looking for coverage without lines, there are a lot of other products available. Don't be confused by the hype. The different foundations I have tried also feel weightless on my face AND stay put much longer.
Its all preference.