I am using my Samsung Galaxy S8 for almost 2 months and never had a single problem. I heard a lot of poeple saying that screen turns red or some other things but I think that this is more like something that happens to only 1 person or never happens but other people like their brand that may not be Samsung or they want clicks for their webpages or they just dont have anything to do and share bullshits on internet. Actually I never had any problem with my samsung phones till s6 edge got released I tihnk that Samsung is well making new phones and will always do better. I always buy new phones like Flagships killers Like Xiaomi, Samsung or OnePlus and I had great experience with them too but for Samsung S8 this year I think is no competition. iPhone will always be faster because of low quality Display and IOS and apps that they are always improved for IOS but I wont loose everything that Samsung S8 have better for just 0.01 Sec. more speed.