Looks pretty reasonable for non traditional players who are used to things like a Chapman stick
As mentioned the bottom three strings are tuned EAD like a bass,I just got a 10 string Ramirez 1a classical guitar and it is a challenge adjusting to the wider neck. My thumb keeps searching for the right bass string. The extra 4 strings are tuned one step lower from the adjacent one. For acoustic they make a very I interesting sound with the extra sympathetic resonance. And I don't have to retune for the lower D tuning. This makes sense to me in an acoustic guitar, I'm not too certain about a 10 string electric guitar. But then I don't know much about electric guitars to begin with.
Not hard if one already knows the guitar. 4 string bass is only an octave lower and usually additional strings will be tuned in 4ths or 5ths. The real difficulty in my limited experience with such guitars is keeping track of which string is which on the fly.And how about memorizing that fretboard?
That's Perf !Here's a video...