Hey @Mao, I tried to gauge how many 6-string basses we have here among the Buzzers a little while ago, see here: Sixers unite!
However, I couldn’t get anyone to 'fess up about them owning a 6’er 
I assume there must be a handful, but apparently they are owned by the quieter bunch in here.
I have a Harley Benton BZ6000NT and, like you, my initial idea was to “fool around with it”, try to cope with 6 strings, see what is possible with the extended range, and maybe get going on learning chords on the bass. The big challenge (and exercise opportunity) is the muting, of course!
In any case, it is great fretboard training to practice on a 6-string, and, yes, everything feels so much more doable/reachable on a 4-string afterwards 