Allo USBridge Sig compare to ultraRendu

Can someone with both a USBridge Signature and ultraRendu describe the coloring differences between these two devices? What DAC do you have it connected to? And, do you upsample or apply any additional DSP? Thank you.

I have an Allo Digione Signature and want to switch to USB. Have narrowed down to these two devices and just need to be swayed one way or the other. Feel free to recommend other endpoints if you feel strongly about them as well. I know both devices are very excellent but am looking for comment from those that have or have had both at the same time for direct A/B comparison in their systems.