Is the top real solid wood?

The listing describes a solid wood top, so the surface is wood rather than a printed veneer. The base and shelf are likely a different material, so check the construction details if matching grain matters to you.

How big is it, and will it fit beside a sofa?

It is a compact round end table, sized for the side of a sofa or an armchair. Measure the gap between your sofa arm and the wall before buying, since the round top needs a little clearance.

Does the shelf hold heavy items?

The lower shelf is meant for books, baskets and small decor rather than heavy stacks. Keep the heaviest weight on the solid wood top for stability.

Do I need to assemble it?

End tables of this style usually arrive with the legs or base to attach. Expect a short setup with the included hardware and a screwdriver.

How does it compare with a square end table?

The round top has no sharp corners and looks softer in small rooms, but a square table of similar width gives more flat surface. Choose this one if walkway clearance matters more than surface area.