most of semperfli's products are fantastic. mixed feelings on fry chenille, or at least for my purposes.
I bought this thinking it might be useful for tying quick lazy baitfish patterns, as opposed to making my own dubbing loops or buying expensive baitfish brushes.
it's very very dense without much length, and I find it kinda hard to trim after wrapping. it will definitely bulk up a streamer body FAST. Unlike the sparser 3 inch brushes, which allow you to tie a streamer with just a hook, thread, and a brush (tail, body, head), you really couldn't do it with this. If you're tying a tail from another material and need a dense body, this works, but I'd also recommend putting a collar on top of it.
difficulty of trimming after wrapping is my biggest complaint.