I finally got back to the bagel shop today and bought USD $20 worth of BTC. It was very easy to use. Of course the fees are steep as described earlier in this thread. For $20 the amount I actually received was 0.004635 BTC, which was $16.82 USD, @ rate of $3,628.91 per coin at the time of purchase, which means 15.9% in fees. Yikes!
It did not report the bitcoin transaction fee on the lamassu screen, but my wallet server tells me this:
AMOUNT TRANSACTED 0.01493871 BTC
FEES 0.000005 BTC
RECEIVED about 5 hours ago
CONFIRMATIONS 6+
note: The AMOUNT TRANSACTED includes: my 0.004635 + 0.01030371 BTC to some other address.
So if I am understanding things then most of the 15.9% in fees went to the owner/operator of the machine.
Me, feeding the lamassu: