Tried it out, noticed a few things.
1. Low resolution contact photos are pulled from my Google contacts - even though the ones I have uploaded are high res. The only high res Contactive pulls correctly are Facebook. Some of my contacts don't have social network accounts, so I need the Google photo to come in as high res.
2. If I delete the automatic lists Contactive creates, it puts them right back later on. I've deleted them twice now, and they keep coming back. Some of my social network friends that aren't in my contacts show up in those lists, and I don't want them to.
3. Linking a contact to a social media account doesn't always stick. I'll link them initially, and go back into Link/Unlink, and the accounts no longer show as linked.
4. It only shows either Facebook or Twitter updates from my contacts in their contact card. I can't see both their social account's most recent update, even if I know they've updated both recently.
5. I don't like that it always has a reminder to link my LinkedIn account at the bottom of every contact. I don't want to see that.
That's what I have from using it for half an hour. Unfortunately, those quirks means I've uninstalled it.