XVive U2 user here for over 5 years with the same set.
Never had any problems, neither with active (Ibanez ATK) nor with passive P and Mustang basses or my fretless jazz bass.
Been using it with both tube amps (Marshall and Peavey) and solid state (Hartke, Quilter, Eden). It always does the job.
I highly recommend the XVive U2 because of its friendly price, no nonsense usability and its sturdiness. If it would stop functioning I would immediately order a new set.