Is an aluminum frame better than steel for outdoor furniture?

Yes for rust resistance. Aluminum does not rust the way steel does, so it holds up better to rain and humidity. Steel frames are heavier and can rust where the finish chips.

How many people does this set seat?

It is a loveseat conversation set, so it seats two comfortably and a third person only if the matching piece allows it. It is not a full dining or family set.

Can it stay outside in winter?

The aluminum frame handles rain and cold well. The cushions should be brought in or covered, since outdoor fabric and foam degrade with prolonged wet and freezing conditions.

Does it need assembly?

Yes. Sets like this ship flat and require bolting the frame together. Assembly is usually straightforward with the included hardware and takes under an hour for two people.

How does it compare with a wicker set?

Aluminum is lighter and needs less upkeep than resin wicker, which can fade and crack over time. Wicker hides scratches better and often looks warmer, but aluminum wins on durability.