Yup... Mi note certainly is best value ever.... And battery life seriously is good especially since it is dual standby sim!!
One thing is I'm permanently on "performance" mode... Cos balanced mode I feel a bit laggy do typing.
I agree, manage to download and try MIUI 7 and also stick lollipop but went back to MIUI7.
Battery life is extremely good. however point to note, better to wipe out data clean then upgrade to MIUI 7 else like what mosprokett mention there is on the timeout download thingy from the chinese MI app from MIUI 7.