I had the best experience of my life with Zaco when I was getting a refurbished HP server. I was skeptical to buy it first but when I spoke to the technical team, they were very helpful and convinced me to go ahead with it. I have been using it for the past 2 years and it has been working wonderfully. I also purchased a refurbished HPE switch from them. It was working very well until I upgraded to a new HPE switch. It was a great experience with them and I highly recommend them.