We don't need everything else matched up... The outfits that claim that they're syncing often either don't understand the idea (they do one-way only) or are just doing a fraction of the job (tags, notes, etc., often don't get synced). It's better to treat each as a master copy and sync only the things that are critical for your app. You only need email address & names (and maybe company and title) lined up to be able to send email.
Suggestion: just sync names and email addresses.
We don't need everything else matched up... The outfits that claim that they're syncing often either don't understand the idea (they do one-way only) or are just doing a fraction of the job (tags, notes, etc., often don't get synced). It's better to treat each as a master copy and sync only the things that are critical for your app. You only need email address & names (and maybe company and title) lined up to be able to send email.