Biostar TZ68K+ makes a pretty good overall impression. No, it doesn’t support IEEE1394 (FireWire), eSATA and Nvidia SLI, but are there many users who really need these technologies? If you do, you can easily find a different model. And if you don't, you can save some money by choosing this simplified mainboard which also brings you the additional advantage of low power consumption and comes at a very attractive price point.
We couldn’t make our memory modules work at a high frequency with it, but there are only few products that can reach 1866 MHz. As for CPU overclocking, the Biostar TZ68K+ hit the maximum frequency our CPU supported. The only disappointment is that the mainboard doesn’t set the memory timings correctly by default. Hopefully, this will be corrected in the upcoming BIOS updates. Besides, “optimal” BIOS settings of other mainboards are not really optimal but only acceptable. You have to adjust them manually if you care about your computer performance. As for Biostar's UEFI BIOS, it has been improved and already offers a sufficient selection of setup options.
So, our overall impression would have been quite good if it hadn’t been for the mainboard’s back panel stripped of too many ports and connectors. While the chipset supports 14 USB 2.0 ports, the mainboard only uses eight and only two of them are on the back panel. That’s not enough for a modern product even though there are also two USB 3.0 ports there. Of course, you can buy a USB hub or a back-panel bracket with USB ports but it doesn’t seem right to buy an inexpensive mainboard and then invest more money into making it functional. In this case it’s better to buy a more functional mainboard right away.
So, it looks like Biostar has gone too far in cutting the manufacturing cost of its TZ68K+, but it’s up to you to decide whether the mainboard’s functionality will be sufficient to satisfy your requirements.