I've seen them in stores where they were set up and a week or so later--they need a neck adjustment--maybe some climates are okay--but the ones I've seen needed frequent adjustment--and I've heard the same thing from others--I've seen them myself in a number of stores in three cities in two provinces.That ^ seems to be mandatory for Squier fretless in stores -- mile high action and nothing setup.
Tried out some last summer in Lung & McWeighed, mile high nothing setup -- pity cawz there were several to try; got back to HK and can't find any fretless to try...
If you get a good one that doesn't need that adjustment--then enjoy.