Cheer's guy's it certainly is a bit of a beast!
Some early observations are:-
Build quality and finish are amazing with some serious attention to detail.
The neck is really comfortable with a nice narrow profile it actually feels smaller than it is!
It has a really nice tone with plenty of options!
The sustain is amazing even on the low F#!
All in all I can certainly say that if your after a custom built bass you should seriously consider talking to Robbie at Rim customs!
More observations soon!
All the best