I think ubi has merit as a short term stop-gap measure, when a replacement system is ready to be introduced. My expectation is it will drive inflation up just by there being more poor-people money to sweat into the corporate/landlord e: toilet paper is more appropriate.
New Study: A $500 monthly basic income led to significant employment growth, enhanced savings, improved debt management, and better quality of life ( www.seakingwdc.org )