Illyasviel

chances of winning something good from chests are literally really low to non-existent , would not advise to buy it, unless you're feeling lucky

daily 100 ads and login bonus if you want smooth gaining everyday

there's just people who have fun when they are trolling or are being toxic

depends if the reward is heavily in demand otherwise about a few days to a week or more

I can barely do any survey in my country

depends on which you prefer, though I prefer anime

from my experience, no.. i've tried many surveys i've completed most and never got anything they would just screen me out after answering so many questions