I had several issues with this application that other reviewers described: Received "FAILED" message, although contacts were still available. Deleted all my groups, deleted the contacts in my chat list. Seems to have populated my "most contacted" list with randomly selected individuals. I imagine this is a consequence of using an idiotic "delete first" paradigm. Also, the "fix" for dealing with contacts without a last name was apparently to append a dash as the last name. So now I have several hundred contacts with "-" for a last name; very annoying. It seems to me that this application is awful, and should be scrapped our completely reworked.

I got the big red "FAILED" message, even though it worked fine.

Only if you have an iPhone/iTouch synced with iTunes, unless this has changed recently (a quick check in Address Book's preferences still only gives me MobileMe, Exchange or Yahoo as syncing options).

Great idea! But also on my MacBook with Leopard GSync doesn't work properly. It starts and reports rather quickly that 60 addresses has to be additioned to my Adressbook, but after that nothing seems to be done anymore. After more then 10 minutes I had to stop the program. Hope that there will be a version that works properly.

I did a "replace contacts in Google with Address Book". It faithfully erased my contact from google, then I got a great big red FAILED message when it tried to upload them. However, my contacts are now all there. But it emptied the groups i had set up in gmail, so that is annoying - but I guess i should have expected that. Oh well - I guess it is back to "A to G"