Doglover, I had a little bit of problem with Homespun at first because I knit really tightly, and I think the Homespun's boucle texture can make it a little bit tricky, but I personally like it after I've knitted many shawls using it, although I haven't knitted the Martha Poncho.
And I really like the style "Martha Poncho", even though I'm not a poncho person much myself. Are many people "against" it? :shrug:
Sorry I can't be more help as I haven't knitted this poncho myself; all I can do is comment on Homespun. I would just say to go a little bit slow and carefully while you use it, especially if you're a quick knitter, just until you get used to knitting with it. I found until I got used to it, when I tried to knit at regular speed, I had problems with it. And until I learned to ease up on my tension a bit, I had problems with it bunching. Now that I knit a little bit looser it's not a problem for me. Good luck with the shawl, PLEASE, post on how you find the ease of the pattern to be and post a picture while you're working on it or when it's done (if you don't mind). I've considered knitting it, but I didn't know if this was something that might look nicer crocheted than knitted (since the original pattern was crocheted), and my crochet skills are horrible and would bring shame to the name "crochet" everywhere! :rofl: