When I first got this computer there were a few things I noticed. Firstly, the side panel was loose and there was no screw in the back to (rather uselessly) keep it in place. Okay, its refurbished. Slight problem. The other being the dented in heat sink for the CPU fan. Again, refurbished. The last post-opening issue is the PSU's cord is way to small but that's easily rectified. Of course, mine was a pro-desk instead of an elite-desk but considering I dont know the actual differences, I don't know how much a cheat that is.On to launching the pc, of which it started fast! And straight to the setup for Windows 10. It's nice and straightforward, with a digital key activation at the end. Keep in mind that you'll need an ethernet cable to have access to the internet until you can download the necessary Windows updates to use either the built in wifi or an adapter (I personally used the latter).Checking the pc components, everything is as promised. The cpu is indeed an i5- 4th generation, 16gb ram, 256 (a slight bit lower but that's expected) ssd, 1tb(again, a bit lower) hdd, and everything ran fine the first day.In terms of using graphics heavy programs, such as modeling programs or recent video games, this pc will definitely not be for you *unless* you spend an additional 300 or so dollars for a dedicated low profile gpu. It should excel at doing pretty much anything else, however.Enough of the good stuff, heres the bad. Yesterday, when I received the product, the computer ran as expected and was as quiet as a sleeping baby. However, when I started it today, a thumping noise could be heard from the case. After putting my ear to it and feeling where the thumping was coming from, it became increasingly clear that it was the hdd. It generates a loud thump whenever it writes or reads files. I've had a pc do this in the past right before the hdd failed and became a useless piece of metal so the one that I got is likely going to end up being the same way.In terms of support I've contacted skytech, USA llc, the company that appeared on the box and this store page as I purchased it. They've stated they dont even know what this computer is.I've contacted astsys, the company that has their support stickers on the computer. There hasn't been a peep yet, but I suspect they're closed at the moment so I'll wait until tomorrow to get a response.Lastly, Amazon tech support suggested a return and refund. I was hoping for a replaced hdd instead, but if astsys doesnt respond, I'll take their advice. I'll update this review once I take either option.TL;DR Great when it works, but remember that its refurbished and something might go wrong the very next day or 3 months out. Play smart and get the additional warranty and hope for the best if you're going to purchase this.EDIT 1: Maybe my edit will save this time. Anyway, Astsys answered back and offered a pre-paid replacement for the faulty HDD the very next day at 6:00 AM. They were quick and understood the situation immediately, answering every query I threw at them along the way. I'm hoping the new hard drive will work, but the support is definitely admirable! Because of this, I'll up my review score accordingly.EDIT 2: Got the new hdd. Right off the bat, I'm disappointed to see yet *another* Seagate Constellation. But I gave it a chance, slid it into the tray nice and easy, booted the computer and! *drumroll* it had the same thumping noise the old one had, only slightly quieter now. Is this a Seagate classic? It's still loud enough and constant enough to be greatly annoying. I'm going to contact support once again with images of the innards to see if they cant find anything wrong with the chassis. If they suggest another replacement hdd, I'm going to refuse and just buy some other one to throw in there instead. I'll be deducting the review score for now. I'm sure the Amazon review verification team love me by now with all the edits I'm throwing here.