I've had this Tower for about 2 weeks now. Wondering if it's my imagination or not but a couple of times it has been in use for several hours, I've noticed "freezing" or "stalling" to the point where I've had to shut down everything in-progress and reboot. Not what I had hoped for but for now it is sufficing as a 2nd or 3rd computer. Yes, I am completely aware of what "refurbished" means or can mean, which is why I do not plan to return the machine.