For fixed focus lenses I wouldn't hesitate getting these online, but for vari-focals these are more sensitive to fitting.
Not sure what kind of adjustment folks are talking about, with a pair of pliers you can bend the arms and nose-supports where you want,
you've got to take care bracing them eg
https://www.opticianonline.net/cet-archive/5842
... if you take them back to shop you didn't buy them in, for adjustment, and they break ... they could say they were fragile/poor-quality too.
The anti-abrasion/scratch coatings some of the Hoya coatings are as abrasion resistant as glass, but specsavers don't seem to publish anything about theirs;
https://www.2020mag.com/article/testing-scratch-resistant-and-ar-lenses.
The Hoya stuff on some vari-focals I have, has taken quite a few hits over >5 years, cupboard doors, car maintenance, dropping, but survived;
sitting down on the glasses presented the biggest challenge bending hinges/arms back in shape.
Anti-glare on both sides helps for driving at night I think.