Benefit: You can create groups, which is great with a long list of contacts.
Limitations: In the standard contact list each alphabetical letter is divided with a grey bar, however in this version there is no boundary between contacts. Also the contacts with a profile picture is tabbed inward in the contact list... the picture does not show when scanning the full list of contacts.. kinda annoying and looks off.
F*ck no! about Address Book Plus, v3.0.5