I've had the chance to use the Connections plugin on a number of client sites. So far it's been able to exceed their expectations and function well within a range of different themes. The few times that the online support hasn't addressed our particular technical issues, Steve Zahm has gone above and beyond to provide superior customer service. In evaluating plugins these days I place almost as much weight in the support element as the functionality. In both cases the Connections plugin deserves the highest marks!