For $85, I guess it's Ok, IF you like v-shape.
Title says it all, basically.
Previously I bought the Kanas Pro, and I liked it except for a little detail, it had almost zero bass. This TFZ No3 solves that problem, it really has a nice low end, maybe too much sometimes, but I can't complain about bass here.
However I'm not so used to this sound profile, it's v shape I think, though mids really aren't that far in the back, they just aren't the main attraction here, but maybe I'm too used to the Sennheiser sound of the 6X0 family. Anyway, I could tolerate this but what bothers me sometimes are the highs, they are not really that bright, but can get very annoying on some tracks. With the Kanas Pro I had to eq'd the bass up, with the No3 I have to low down the highs.
It's a nice iem after all, comfort it's ok, the cable keeps the iems firmly pressed to the ears which is nice, though the way the pins were built makes this cable difficult to replace. Minus a star for this.
I'll probably leave this iem for a careless use on the go, having to equalize, I prefer the Kanas Pro over this one, and if I had the chance to hear it previously, I wouldn't have make the buy, it's not my kind of sound.