It's fast, fast, fast, fast.... Even though I'm having problem setting it up correctly due to my useless ISP, but this thing is a beauty. Another great piece of engineering from Apple. It's so fast even from my 2011 Macbook Air which shouldn't benefit from it. The internet is fast. The Wi-Fi is fast. The LAN is fast. I feel like I just bought my new laptop. And it's a relief I don't have to plug in an external to backup anymore. Highly recommend for anyone who's considering it.