[@dadams]
Whether the following qualifies as insight I don’t know, but my main problem with Last Pass is what seems to be lack of interest in it by its new owner, since if support is withdrawn it’s not clear that you could just continue using your existing version forever, especially on new machines you might want to move it to (unlike, e.g., the open-source KeePass variants).
As far as I can determine a somewhat similar concern applies to Sticky Password, which seems to state that a Sticky Password Account is required for all use even though off-line use is possible for most common activities. That’s my main reason for preferring the KeePass family. Otherwise Sticky Password seems quite attractive and better suited to novices than KeePass variants are, though its simplicity does mean that things like password histories (of earlier password versions) aren’t maintained and without trying it I don’t know how readily it accommodates multiple browser instances (e.g., if a given browser is not only installed but also exists in multiple portable versions some of which may execute simultaneously – though other password managers may have problems in such areas as well).
Linux support would be nice.