I have a regular Kingston 60GB SSD and my game takes 10 seconds to preview - 5 to open up NW.js and 5 to load. Windows 10 opens up in about 7 seconds. Getting an SSD was a great decision, especially because the 60GB was at a really good price. I don't think upgrading to a PCI-E one would be worth it though, I mean, even if it's twice as fast it's just like 3 seconds faster...