By ear it sounded fine, with no hums or whistles. I haven't seen the Veronica unit in the flesh, but I have seen its' picture and schematic. I went for the Broadcast Warehouse unit because it was cheaper, smaller, and uses less components. The Veronica unit uses a PLL based on a 4060 IC, and a divider chain built from 74ALS and LS series logic. The total IC and transistor count for the Veronica unit is 8 and 11, compared to 4 and 5 respectively for the Broadcast Warehouse unit.
Less components means less things to go wrong, and less chance to make a mistake in construction.
Less logic chips mean less chance of interference from noisy logic lines. Modern design with low component count. Good technical specification. Tuning takes a little bit of getting used to, easier to set the centre frequency of the VCO if you make use of the test point as detailed above. They really ought to supply a schematic.