The first laptop they sent was perfect except for the battery; it would die at 87%. I processed a replacement, and they immediately sent it over in less than two days. I spent only one full day without a laptop. The next one they sent was perfect! The only minor issue is that it starts to get hot when it's running on just the battery, but that's because it's an old MacBook (2015); I tend to keep it plugged in most of the time. Overall, a great purchase, and I'm thrilled to have my first MacBook!