It is very stable bruh, this is my favorite when there are still no great ux roms and even dreamux roms, its performance is very good but it has the UI of s7 which makes it look a little bit outdated, kernel in here is phoenix v13 but the battery is very well optimised in here especially in standby time, I usually get 0-3% battery drainage in overnight. But for the lack of visual experience like noteUX or the dreamUX, I came back to skies (on that time, now Im using nemesis reborn). But I figured out that phoenix v13 isn't good for gaming bc I tried playing with games, and it is not as smooth here in sparkplug, but the games arent lagging extremely when left in ram and opened again. This is a very good rom, only had that personal issues with me.