(Dec 2019 update below)First, don't be scared off by "refurb".  The seller (StallionTek) provided a nice clean system - in this case the specs were nicely dragged toward current-day (as of 2018/2019) within the constraints of a 2013 platform.  Yes, there are some small scratches / dings on the case, but as noted, the system was clean.  No dust bunnies or dried coffee spills.This has a healthy dose of RAM (128GB) and disk (500GB SSD + 2TB HDD), cooling like an overclocked game rig - but not too loud.  Plenty of USB, a firewire port plus some old-school PS/2 and DB9 serial COM.  There's extra internal drive bays if the time comes to get more disk storage.  Dual Intel Xeon E5-2670 CPUs and dual nVidia Quadro FX 3800 Graphic cards are admittedly a bit dated, but capable.  It's running a fresh/current OS and - best part - none of the typical HP bloat ware.As advertised, the system does come with a mouse and keyboard, but both are wired USB.  And while they're good for initial bring-up and will be great to have on a shelf as spares for when yer in a bind, they are a bit minimalist, clunky and cheap.  You'll want to pick up a proper mouse/keyboard.Ask yourself why you are considering this system.  I personally had need for a modest/starter workstation-class system for number crunching, light CAD, and software development, etc. but I wasn't interested in jumping into a $2K to $3K system only to be potentially underwhelmed given the price.  (If you need a modern-day, top of the line workstation, then you should probably move along.)And don't forget it's *WAY* cheaper than if you had bought the system new, at full price, and then paid for all the current day upgrades.****** Update: Dec 30, 2019 ******Hate doing it, but I had take back one star regarding SSD/HDD.  One concern I had on receiving the system was the "Super Talent" brand 500GB SSD.  Despite all my tech purchases over 30 years, I had never heard of them and was a bit concerned it was junk.  But a few quick searches turned up nothing negative and a few "pretty good value" comments, I figured I was falling victim to "brand name" prejudice.Fast forward 5 months of limited use, I started getting blue screens daily/weekly, but system checks, diagnostics turned up nothing.  Then one day, my SMART check came back with a panic report (out of the  blue) the drive was failing.  Reallocated sector count was maxxed and pending sector count was climbing.  I was able to partially image it, before the drive completely failed - fortunealye my SOP is to regularly snapshot drives.  The last successful SMART report showed the drive failed with only 96 hours of power on time (!!!)Then on closer scrutiny, I noticed the 2TB Hitachi HDD had over 58000 hours of power on time, so it's well used.  Hitachi makes good drives, so I'm not as concerned.  Power-on hours is the drives "worst" reported attribute, all others are still very good.  But still, I had naively hoped that the perhaps most vulnerable components would be what was renewed.So cheap junk SSD (personal sample size of 1), and a well worn HDD.  I had to pony up for a new SSD and will sooner-than-expected need to replace the HDD.So far, in spite of this disappointing episode, I *still* think the system, as purchased has value.  it might stack up a bit differently against other options given the necessary component replacements.  But I will probably still make this purchase again.I contacted StallionTek for comment on 12/18 (admittedly, the week before Christmas wasn't the best time). But as of 12/30, I've gotten no response.