I bought this PC as a perceived best option to replace a failed main workstation. I needed a replacement that would be compatible with a GNU/Linux operating system. HP has their own Linux Enterprise distribution, and being a business-oriented model only strengthened the assumption this would be perfect for my needs.Specs on this are across the board better than the failed unit's. I knew I would be changing hardware, so I made sure that I could make these changes before buying.The provided Hitachi 2 TB HDD was nearly 9 yrs old, with over 54,000 hours of run time on it, so I swapped it out for a brand new 2 WD 2 TB I had in inventory, adding a slightly-used 1 TB WD as a second drive. Although a noisy operating drive, SmartMonitor suggested that the Hitachi had a lot of life left in it. I'll use it my docks as a spare backup solution.(Extra value #1)The 120 GB SSD included in the PC wasn't needed, so I used it in my laptop. The improvement in performance was very noticeable.(Extra value #2)A Tendon W311M a/b/n class Wi-Fi dongle was provided in a static-protection pack. I had no need for this in the HP, but I did have a Gateway desktop that was going into the workshop and needed Wi-Fi capability. Now the Gateway can connect to my router via Wi-Fi.Noted Shortcomings:The laptop designed DVD drive is useless. It struggled to read my burned DVD-Rs. There is a bay provided that will open to the outside for a 5.25" DVD-RW. I plan on adding one from my inventory. Unfortunately, I will need to keep the DVD drive in the chassis, until I can order a blank cover.HP doesn't provide enough mounting screws to fully populate the drive bays. I ended up with 7 instead of 8, now mounting two HDDs. I ordered a set of eight screws from Amazon (about $8 USD.)I wish the motherboard has just one PCI slot. I was fortunate not to have an immediate need for one, but...Linux users will need to download from their Tendon's website the source code for their v3.0 proprietary driver. This won't be a standard 'make, make install' installation. A binary is provided under the 'tools' directory to install driver to the system. There are no instructions provided on the website or in the source package. it took some searching and a 'cross my fingers and try this' approach to figure this out. Installation is dialog-free, without visuals. You'll know it's done when the HDD stops.Lastly, I'm not fond of paying a 'M$ tax' on a PC I buy, but I'm used to it. In getting the full use of the drives I've destroyed a legit, complete OEM Windows 10 installation. It *only* bothers me that I paid for it.The extra values, in my case, made the cost for this unit an extraordinary value. Time will tell how durable it will be. The 1 yr warranty is a big plus, and that the vendor will not void my warranty because of the above changes made. I highly recommend this PC for Linux users wanting a cheap system with lots of modern features. I can't comment on running the PC with the provided Windows 10 installation.