You really have to comb the section multiple times before you get somewhat better look. Definitely doesn't make your hair perfect staright. But looks likeblow dried hair but again need to spend a lot of time
It definitely do not fry your hair like straighteners and do not feel as heavy as blow dryers. It is combination of two and this is what makes it perfect for every "other" day use. I have frizzy dry wavy hair then too I love it. Put it on second heat setting, and you'll get the straight hair not poker straight silky shiny as we see on advertisements but manageable hair for sure. If you're worried about heat that'll burn your hair. Well , keep this device moving and do not keep it near scalp. I use it with heat protect-ant sometimes and 5 inch away from the scalp. Because my waves start forming on lower ends and I do not want heat to mess with hair growth.
I have thin, wavy hair texture and this is a great alternative to using a straightener as it causes lesser damage and takes way lesser time to style. But that's just my opinion, I wouldn't recommend this to people with thick, very curly hair texture as it wouldn't give you the results you expect. This does NOT produce pin straight hair, just smooth and manageable half-straight hair which I prefer. Of course, you could get the same results with a good blow dryer and a large barrel ceramic brush, but this is much more easier to use. I'm not denying that it produces a little frizz like any other blow dryer you use to style with, but that can be taken care of by applying a little serum once you're done. Overall, this is a pretty decent alternative to a straightener if you don't expect pin straight hair and causes lesser damage and takes lesser time to set (15-20 mins for 60% wet, thin textured wavy waist length hair). I've tested it by styling one side and air drying the other side of my hair and noticed the difference so I feel it was worth it for my type of hair.