It's not a bad effect, it still looks really cool. Most phononauts cost at least 20 keys even if many more exist than this. The key is 1.08-1.2 keys. The CRATE for this item is almost $10! That's one of the most expensive crates in TF2 I believe. The color of the TF logo actually compliments the hat quite well, it matches the color extremely closely. This hat is also all-class which makes it automatically more valuable. Take this as a grain of salt as I do not trade extremely often and this is my first price suggestion I think.