Minecraft: Bedrock Edition is great. There's essentially infinite content because of the Marketplace's vast collection of user-generated worlds, skin packs, resource packs, and mash-ups. Whether you're building a town in Creative or going for that sweet 100% completion, you're sure to enjoy your time doing so.
I knocked off a star because of the awful touch controls, but the controls on most other platforms, namely PC and console, are great. You can use an Xbox controller with the pocket edition, however the small screen of an iphone is difficult to pair with a controller. Joy-Con and Pro-Con are incompatible with the pocket edition.