Can't say anything about the rest but for file management I use simple explorer; nova launcher and anysoftkeyboard are I think quite economic memorywise; and in general, with link2sd and a 2 gb partition on a 8 gb sd card, fstrim, disabled zram and distributed swap I have no problems with storage; as for performance, for a phone with that little memory I think it manages to serve lollipop reasonably well.
Obviously this is my personal opinion but marshmallow seems not worth much effort - it mainly introduces some security features, putting it on another device (Nexus 9) I did not feel any significant improvements compared to lollipop.
Any news? Actually the whole page chooser does not work, when I click on anything there it does not display the page listing, only the stuff common to all pages. The page shows correctly when I hit the reload button. Chrome 46.0.2490.80 dev-m on Windows 7 Ultimate x64
Judging by antutu, 0.9 seems to be significant improvement over 0.8: I now got more than 10000 when on 0.8 I hardly reached over 7000. Now this is a very low score anyway but for Y300 it certainly is quite decent. I did not get much more than that on kitkat.
Now on 0.8, feels SUBSTANTIALLY smoother than 0.7. Did not adjust governor/scheduler etc. in any way. On the first run it froze at the welcome screen for several minutes, but afterwards everything went fine, seems to be the best of chil360s lollipops so far :thumbsup:
If you had 126.96.36.199 this should add complications, with me it froze every time I tried to reboot from TWRP. I reverted to 188.8.131.52, it seems to work fine. Unfortunately they changed status to No Longer Updated for Y300 :(