Topcoats affect sheen, cleanability, UV behavior, and wear. Compare the whole system rather than treating a topcoat name as a performance guarantee.
Questions that make the comparison useful
Ask how the proposed system responds to the actual concrete condition, expected light and use, repair visibility, maintenance expectations, and the necessary cure period. This keeps the choice centered on function as well as appearance.
Review a sample in context
Look at finish samples under garage light and discuss sheen, texture, edge details, and how the floor will read with vehicles, storage, cabinets, and dust. A sample is a decision tool, not a promise that every slab will look identical.
Continue your planning
Read polyaspartic vs. epoxy, the flake color guide, and texture and slip considerations.