Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great for sciatica

I have sciatica, the kind that comes from the piriformis muscle. Sitting, which I do a LOT at the computer, aggravates it. Maybe even caused it. This Carex Inflatable Ring Cushion, partially inflated, is the only thing that has helped. My only gripe is that the one I had only lasted a few years...seems like they'd last longer than that as I'm not real heavy and it never left my chair. It will no longer hold air and you can feel the air coming out on the edges, not at the seal/screw in part. Oh well, it's sure worth the $10.54 for the relief it provides.