Tested it out (ordered it fully soldered) and it works fine. Shipped in plain padded envelope but pins were not properly covered and punctured the packaging. They were sticking through the envelope and were very bent on arrival. Easily bent back into place but I would recommend a thicker piece of foam to cover the pins and perhaps some more padding around the device.
It's a pretty simple circuit, essentially just a SN754410NE chip and some connectors, but it still manages to provide a useful addition to the Raspberry Pi. Assembly was also pretty simple, following the on-line assembly instructions although the screw terminals needed a bit of a wiggle and push to get them fully seated. This is probably a good thing, as it both made them easier to solder, and might even help keep them solid in the face of vibration. It could do with a bit more thought on testing the board as part of assembly, but essentially it works.
Full review at http://raspberryalphaomega.org.uk/2014/01/15/ryanteck-rpi-mcb-motor-control-board/
We've used the Ryanteck Motor Control on the Rasperry Pi to motorise a Lego carousel using a motor from an old toothbrush powered by two AA batteries. Using ScratchGPIO to control the motors forwards and backwards. Simple and works really well. Just on the look out for some slightly better motors now.
This board is easy to assemble, completed well by 8 and 10 year olds, and easy to use - particularly with Scratch GPIO.
It has enough functionality to allow basic motor control but retaining the simplicity that means it is at the right price point for use by beginners and schools, it is good for more advanced users as well as the electronics are understandable and can be explained to somebody learning electronics.