Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Same fatal flaw - bad space bar

I went ahead and got this in spite of the reviews, hoping I would get a keyboard with a decent spacebar. But, no, it's just as everyone described. It's hard to hit, clunky, noisy, and causes thumb pain within minutes. I'm hoping the replacement may be the rare "one in however many" that actually is ok. The only good thing I can say is that at least Microsoft has good customer service, because after just half an hour on the phone, they're sending a replacement keyboard.