Is this mug meant for daily coffee?

Not really. At 3 fl oz it holds about a third of a standard cup, so most buyers treat it as a collectible or espresso-sized vessel.

Can it go in the dishwasher and microwave?

The listing says both, but it also says handwash. Handwashing is the safer choice to protect the gold finish and the printed city artwork.

How does it compare with a regular Starbucks mug?

Same ceramic construction and handle, but much smaller capacity and a city-specific design. A standard mug is the better daily driver; this one is for the collection.

For a Starbucks Global Icon collector or someone connected to Chongqing, yes. For someone who just wants a coffee mug, its small size works against it.

What comes in the set?

Two pieces. There is no saucer, so expect the mug plus one additional piece such as a lid or coaster.

Will the gold color wear off?

Metallic finishes on ceramics can fade with scrubbing and dishwasher cycles. Handwashing and avoiding abrasive sponges keeps it looking better longer.