Had this since day one and it's just awful. truly, awful.
Use your imagination and picture what you think "Minecraft Earth" should be.
Maybe a massive earth-style Minecraft map we can all play on in real-time?
Maybe it's a cool way of creating augmented spaces for other people to share and explore?
Maybe it's an MMO rogue-lite with fun gameplay?
It's none of these, and it's so depressing. They have the ultimate sandbox genre to build this upon and instead basically just gave a brand agency a brief of "How can we apply our Minecraft IP to Pokemon Go"
You know those spinny pokemon go things that give you items? It's basically that. You tap a stupid virtual tree that spawns and 'earn' Minecraft building blocks which are given a rarity, so you travel round in a go-cart, tap things and get given a shit like "Dirt (common) x 3" as a reward. There is no persistent world, you can't build anything, it literally just spawns in things you can tap on as you move about, and that's it, that's the "Earth" in Minecraft Earth.
So what do you spend these building blocks on?
You can then buy tiny spaces (e.g. 32x32 tiles) that you can build things on using the blocks you have earnt. But this space doesn't exist globally, it's yours. It's not linked to any sort of geographic location, and folks cannot stumble upon or see it unless you explicitly invite them into it.
So I purchased a 8x8 plot, invited my kids into it, ran out of blocks to build with after 2 minutes then went back to playing Regular Minecraft.
So not only have they completely not done a single meaningful gameplay thing with the geolocation stuff, but they've made the core Minecraft experience worse by limiting resources and adding microtransactions for buying soil.
There are minecraft knock-offs on the iOS store that are immeasurability better and more inventive than this.