I love my puffers! I, too, and a YLF convert. I had one before, but never one that was either functional enough as gear or attractive enough to enjoy wearing. I learned to shop better for my needs once here.
Currently, I own four and I love them all. Two are heavy duty cold weather coats -- the Quartz and the Lole (which is very old -- 12 years and going strong!). You would think these would be unnecessary out here on the west coast, but au contraire! This year, in particular, I have worn one of these coats almost daily since late December. I'm wore the Quartz last night and even during the daytime. Their season is shorter -- only 2 months a year as opposed to 4 or 5 -- but it's still significant.
I also own two light packable puffers from Aritzia. They are lower quality, of course, and not as warm (by design) but super, super useful for layering either under or over something else and I wear them constantly. Their season would be from about November to the end of March here. Though I even wore the short one as late as June a couple of times last year!
I would like another of these in a mid-length and I'd also like a puffer vest!