Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: the really long, blue one warps easily

I know I'm not putting tension on my yarn because it almost falls off the loom, but my big, blue loom is seriously warped and I've only made about 18" of knitting with it.... Plus, the set only comes with VERY basic instructions that are really only suitable for use on the smallest (red) loom and looks awful in the suggested worsted weight yarn (it's very loopy and would get caught on everything).This product might be better if 1. it came with more/better instructions and 2) didn't warp so quickly.If you're going to be making flat panels, stick with the round loom and read up on stitches that will lay flat. Going around the flat loom to make flat panels is a pain, it is difficult to work the inside of the loom.