Those are nice; they have a sleek look to them. Could you add more shelves if you wanted to?I used those from Ikea.. I live in Europe and not sure they have the same in the USA however, good size and not expensive.
Added some LED ruban to get lights...
It is not designed for (no support for additional shelves) but should easy to install additional brackets if you get the proper glass shelf.Those are nice; they have a sleek look to them. Could you add more shelves if you wanted to?