Instruct: Classify Amazon reviews into positive or negative sentiment
Query: No comfortable position

Installed this seat as soon as we got it for my Wife, who rides a Hybrid. Well, she was either slipping out of the seat all the time, or the corners prevent her from pedaling properly. We ended up cutting our ride short. Sending this back to Amazon today. I'm sure this may fit for someone, but I would say, be ready if it doesn't quite work out.