The TerraMaster F2-220 is sold at a very good price given its hardware, but its performance is low. With the J1800 Intel SoC and 2 GB of DDR3 RAM, I was expecting much higher network transfer speeds - the final result was disappointing. The operating system is in my opinion to blame for these poor performance results. TOS might have a very nice interface and might even be snappy, but it still needs work in order to reach the performance levels of QNAP's and Synology's operating systems. Moreover, there are currently only few optional application packages that enhance the server's functionality, and there are no official mobile apps. TerraMaster should also develop a surveillance app for its products since more and more users utilize their NAS servers for surveillance purposes.

The F2-220 has enough advantages, but as it currently stands, its disadvantages outweigh its advantages. Although its CPU is old, it still has the required processing power to offer good performance levels that should easily surpass the competition with weaker SoCs in this price range. But in order to do so, it needs proper software, software capable of exploiting the J1800 CPU's features to its fullest. Almost all downsides I spotted with this product have to do with its operating system and software in general, which makes these fixable issues. If TerraMaster really wants to increase its sales in the NAS market, it should focus more on the software by pushing its programming team to fix all the flaws in TOS while developing more application packages, including some for mobile platforms. Since this is a home-oriented NAS, it would also be for the best if it were equipped with an HDMI port. Given the Intel SoC, Kodi could be easily be added to its optional apps to greatly enhance this server's multimedia capabilities.

With a price below 200 bucks, the capability to easily upgrade the RAM, and a pretty strong CPU for a NAS, the F2-220 looks like a good deal. Compared to similarly priced NAS boxes from QNAP, Synology, and Asustor, the operating system and lacking support when it comes to apps look to be its major downsides. If you don't need a surveillance app and don't care about mobile apps, as there are none at the moment, you could invest in this NAS and wait for the next OS update that will release its SoC's full potential in terms of performance. However, if you don't have as much patience and don't care as much about processing power, but prefer a more mature OS and need a wider selection of optional application packages, you should look at alternative choices from a better known NAS manufacturer. The truth of the matter is that the software and support are probably more important than the hardware specifications when it comes to a NAS.