I used previous Micro-BR device 5 or 6 years ago, and bought this one for our group's new guitarist. The new BR-80 is a definite upgrade - easier to use controls, more tracks for recording, external slot for SD card, audio interface built-in - basically, nothing else is needed for home recording, apart from a laptop computer and USB cable.
It cannot play some MP3 files imported to the device for some reason (produced by MAGIX Samplitude, for example) and sometimes WAV files cannot be imported correctly, but these can be easily converted to Apple .AIFF format and then copied to the device.
Overall - fantastic tool for guitar training or quick recording. Also, there are very few, if any, similar compact devices from other brands nowadays. So, it may be the only choice!