Compare floor space, seating, traffic flow, and moving flexibility.
The short answer
A straight sofa gives you more layout flexibility. A compact sectional works when its chaise leaves the main walking route open and its pieces fit through delivery.
A sofa can often move to another wall, pair with an accent chair, or follow you to a new apartment. It usually preserves more options for a narrow room or a room with several doors.
Choose a sectional when the corner earns its space
A compact sectional can seat several people without separate chairs. It works when the chaise does not cut across a walking path and the configuration fits both the current room and delivery route.
Compare footprints rather than labels
Tape out the total sectional width and chaise projection, then the sofa and chair alternative. Account for the coffee table and where people walk. A compact sectional may use less usable floor space than a sofa plus two oversized chairs.
Think about the next move
Sectionals have a fixed orientation unless reversible or modular. Ask how many pieces arrive, whether they fit stairs, and whether you can change sides if you move.
A simple decision
If the room has a clear corner, a stable layout, and a manageable delivery route, test a compact sectional. If you need a flexible path or expect to move, start with a straight sofa and add seating only when necessary.
Ready to measure?
Check the size and the full delivery route before ordering.