I had no problems with the filament at all. For those who complained, maybe you had bad settings? Find someone who can set up your printer! I set mine at 230 for the head and 55 for the bed and used a 1.0 head. I didn't even get really noticeable strings. I will upload photos. It changes back and forth quickly. You can use a heat gun to switch back and forth or some hot water.
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