I use a bifrost almost every day. It never fails me. Getting one with USB built in will make it much more flexible if you want to stream in the future. As you go up through the Schiit line-up you can easily notice sonic improvements which match your budget.
Another huge advantage of using an external DAC is that you can just upgrade that portion of your system.
Another huge advantage of using an external DAC is that you can just upgrade that portion of your system.