The Noob store is on Hangzhou High Street. It's near the ARF shop. If you get a taxi from the station, just ask the guy to drop you off at the corner of Hangzhou and Xi Way. Then head east. You can't miss the store, they've got a big watch in the window.
From what I recall it's usually located right next door to most Rolex AD. So if you have a AD near you, the Noob store should be there. Arf right next to that...
You don't really need the loupe in the physical Noob store to be completely honest. They only keep the best examples in the brick and mortar Noob locations with stringent QC guidelines.
All of the rejects are offered to us online with hopes we won't catch the issues. Going in person to the Noob store is the best option. Now is the best time to go, flights are very cheap due to Covid.