Instruct: Classify a review into positive or negative sentiment.
Query: Turned itself inside out on a still day the first time I opened it

The title speaks, I think, for itself. The canopy is thin, the shaft and ribs are flimsy.I tried to return it and the seller replied that opening it constituted using it and refused to refund the purchase and insisted I would have to accept an exchange. No, thank you.Do yourself a favor and buy something else.