For an i5 with 16 GB of RAM and an SSD, you can't get any better than this. I had no problems with Windows activation, all the drivers were installed properly and everything ran smooth. The PC joined to our domain without issue, and the user has been able to run all programs without issue (even Illustrator is running very smooth with the onboard graphics).  I also cracked open the case, absolutely pristine on the inside, and the case itself looked to be in great shape.The only cons I have are:1. The "wifi" isn't integrated, its a cheap dongle you plug into a USB slot. I was not able to get it to work - the drivers I downloaded online didn't seem to do anything. Luckily the office is all hard-wired so this wasn't an issue for us.2. The peripherals are the cheapest crap I have ever seen - the keyboard has to weight less than an ounce, and the mouse is pretty close to that - I would 100% plan on buying new peripherals to use with this.For a replacement PC for someone who already has peripherals and uses a wired connection (or has a working wifi card/dongle), this is absolutely perfect. I'll definitely be purchasing more of them.