I bought this computer a couple of months ago. After using it for a while I can say that I am very happy with the seller and my purchase. I'm not a gamer so I don't care about the things that they are looking for. I am a writer and I wanted a computer to suit my needs. Also, I don't like using Windoze or Apples. I don't like Microsoft's business practices nor their intrusive software. It's my software if I buy it so don't keep nagging me to do some stupid update that you think I should have because you release your software before fully testing it! Make your software more secure and efficient from the start and you won't have to keep sending out updates and patches! And Apple? Please! You want me to pay how much for a computer that I can't even add an expansion card to, or install software that you don't approve of??? Who the heck are you?!  I am a Unix and Linux guy and have been since 1998. So, I installed Ununtu 20.04 on my new Lenovo ThinkCenter and it went smoothly and easily. I also installed a wireless/bluetooth card that gives me 5G. No problems. I love how fast it boots up because of the solid state drive as well! And as for the 256GB drive that comes with it. Big deal! I needed a bigger drive anyway so I purchase a 4T USB drive to finish it out. Perfect!Many thanks to SKYTECH USA, LLC for offering this computer on Amazon!