yellow-leaves So I've seen all the hype around the The new network location feature but personally i fail to see much of a use case.
In my experience the GPS pretty much always locks in on the location within a few sec.
If one is outside with a good sky view, GNSS works well and quickly. It can work much less well in an urban-canyon situation (surrounded by tall buildings) or indoors (especially when several floors below the roof, or if the roof is metal).
Cellular carriers spent lots of time and money developing assisted location technology based on cell-site information because GNSS by itself was felt to be insufficient in many situations.
Both Apple and Google spent lots of time and money developing location technology based on Wi-Fi information because GNSS by itself was felt to be insufficient in many situations.
Users in 19th-century wooden farmhouses sitting on farms (such as a member of my family) can get quick and precise indoor location via GNSS, but that experience isn't universal. Statistically, most people live in cities, where nearby Wi-Fi networks are common and sky view is often limited.