It's actually 4th, bbk is 2nd
I actually really liked Xiaomi, but they really need to stop doing the MIUI upgrades thing while leaving older phones behind on older Android versions. Coz they update MIUI to new version and it looks like you're getting latest Android version too like brand new models just to realize you do get new MIUI features, but the Android underneath is still stuck with some old version. I really disliked that. Other than that, it was good experience. I even like MIUI as it is. It's very feature rich layer so I didn't have to install bunch of apps. Like weather, data plan usage, antivirus. And the built in stuff was actually really nice to use. I don't like the app killing which is a massive problem in most Chinese brands that are obsessed with killing apps to "save battery". Even when I excluded the app and gave it lock in task manager, it kept killing them. That was super annoying.
Xiaomi makes affordable and solid phones. I know, I'm using one of them. Congratulations.