Flatness and defects
Patches, cracks, ridges and old repairs may need correction depending on the new product.
Contamination
Old adhesive, paint, sealers or other materials can affect bonding and preparation strategy.
Moisture
Concrete moisture conditions can determine whether additional mitigation or another system is needed.
Budgeting
Carry investigation and prep as explicit line items instead of assuming the new material price includes everything.
Commercial flooring decisions depend on the actual substrate, moisture conditions, traffic, cleaning regime, accessibility requirements, fire/building rules, manufacturer instructions and local code. This site is for planning and comparison, not installation instructions.