nothing but great things to say about my Ultralite.
i believe that you can't use the Motu as a soundcard for 2 laptops at one time..although i have no technical basis for my answer. check with Motu.
i do know that the extra port is for daisy-chaining multiple Ultralites...
Also-if the Motu is to be used with a Windows PC, be aware that your computer's firewire card should have a TI chip....