After receiving my Noble 3 weeks ago I thought I'd share my 2 cents in case anyone is still on the fence. I double on electric and upright and consider myself a semi professional gigging only 3 or 4 times a month in several different projects mainly for my own enjoyment. Although my focus has been on the upright the last couple of years 2/3rds of my gigs are still on the Fender. I was very apprehensive about shelling out the $1k+ but decided to jump in knowing I could always resell it.
Played 3 gigs so far, 2 electric gigs 1 classic soul and 1 Blues/ Americana and one upright gig with a jazz trio no FOH support. This thing is the best investment in gear I ever made. I've been trying to get a decent amplified sound out of the upright with minimal success until now. No matter what amp or speaker I plug this box into, as long as the amp has an fx return I have my sound, double bass or electric. Echoing someone else on this thread I don't like practicing without it anymore. Kudos to Jack! I'm never selling this thing.