The labels stick very well, once glued wrong (or blistering) they are not correctable - here should be used carefully when gluing.
Although the labels are intended for preserving jars etc, so of course can also be other things such as gifts paste. We used to seal a portion of the labels for homemade eggnog from the Thermomix, bottled in beautiful bottles design. Looks great :)
Certainly the labels are more expensive than eg conventional paper labels (which are also printable), but the glue of Every have a significantly wertigeres appearance and are plus waterproof.