Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Horrible spacebar

I can't imagine why an ergonomic product, designed to ease physical effort/strain would require greater effort/strain in the most frequently pressed key, the space bar. I won't regurgitate the design flaw, since others on this board have mentioned (which I regret having accessed only after receiving the keyboard), but I have put it back into the box to return. I usually try to avoid the hassle of returning things, but this keyboard is just too seriously flawed to overlook. Kudos to those of you who aren't bothered by it.