I think it may depend on where you are.

Around here (Long Island, NY), it's far better than Google Maps, and I use it all the time.

I've heard that it falls down, in rural areas, though.

I've used it almost exclusively since around 2019, but that has been in the Bay Area and LA area where the data has presumably been very good relative to other areas.

A few years ago I saw Apple Maps get things wrong in Cupertino!

I uninstalled Google Maps when it started draining my iPhone battery at an absurd rate. Apple Maps it is.

It’s unusable in Sydney, Australia.

It might be fine for pure navigation to addresses but business addresses and other metadata are often missing or out of date because people only bother to update Google Maps. Also that’s where all the reviews are.

I don’t want to use two different apps for navigation vs finding businesses.

Since the last time I tried, Apple Maps has come down from plotting some 30 petrol stations in the Sydney CBD to 2. There are in fact none.

Apart from needing to copy and paste destination addresses from Google/Google Maps every time I use Apple Maps, it's great.

Doesn't do bike routes at all in my country (Ireland) for some reason.