The Meaning of Life, the Universe, and Everything.
Obviously its not completely infinite but 2,500x2,500 or 60,000x60,000 gives you so much more time before restarting for new content.
Again menu load or game load, most will take not waiting 5 mins for chunks to load than menu.
Converting can do that to worlds, sucks but it happens, its programming and it has issues at launch like everything does, but again benefits outweigh it.
Like i said dude, if you prefer editions thats cool, but dont expect everyone else to hate it just because you do. Makes you sound like the typical anti Minecraft update people who complain every update makes it 'less minecraft' then are fine with it after they get used to it.
The performance is better than Java in many ways, while I'm not into Bedrock for multiplayer it is a reason many people would with crossplay. Sure the mobile like interface but that's since it is for tons of platforms. Windows 8/10 go for Mobile/Tablet/PC like consistency. Besides the loading is for the world once and it works fine afterwards, at least from my experience but I use Windows 10 for Bedrock not console anymore. I've never been into infinite worlds but you still get large scale and it's more manageable. With Bedrock I could pick it up where I left off I don't need to worry if I don't have an device (Tablet/Laptop) that can run Java unless I care about mods I can just launch it. I'm not big on Bedrock due to Java benefits but I won't deny the benefits it has that I listed and many I didn't.