Is Product Placement Effective If You Don't See a Logo?
This is an excellent question, with a very short and simple answer.
Product Placement is a visual medium, so interesting design plays a key role in how successful it can be.
If your product is visually unique, then a logo is not at all necessary for a successful placement.
However, if your product is so vanilla that the only way one can distinguish it from a competitor’s product is if they see a logo, then Product Placement is not for you.
In fact, vanilla design limits your marketing options far beyond Product Placement. You might want to consider retaining a product design company for broader differentiation.