I got mine as a (much) cheaper alternative to the Linnstrument—a chance to play with MPE without so much of a financial commitment and also a way to maybe learn guitar. I’ve been pretty happy with it overall. I did get a blister on my thumb the first day, and the rubber surface isn’t as conducive to sliding about as a slicker surface would be, but it’s not that bad.
It might be nice to have deeper access to the software (e.g., to add different tunings beyond those included, or to be able to reassign MIDI CCs), but I’ve had a lot of fun with it so far!