Not sure how this compares to the lunchbox hardware, which has a decent reputation for being quiet and getting the job done.
You can take a look at the full UAD 1073 here.
Without the EQ section of the 1073, the preamp has a bit more low end and doesn’t roll off where you can really hear anything. The harmonic/noise modeling seems pretty close between the two plugins, other than a couple of low end spikes in the preamp. (It’s hum, man!)
Yes, the king of unusual controls! And it just makes the HLS even more fun to use. I use this as part of a channel strip / console set-up along with the other Kramer plugins. You can read all about how I do that in the manual for my Waves presets here, and you can get the presets here.