For me, the best kind of services are the ones that you forget about because they work so well in the background. This is what Kixie does so well once it's installed; it's unobtrusive, simple, and does what it is supposed to do in the background. My sales staff no longer has to worry about tracking and logging their outbound or inbound calls because Kixie is installed on their phones and computers.
Kixie provides a nice user interface. There is a bit of a learning curve to load leads but it's not difficult. It's just learning where to go and how to load lists for the reps. Once you have it figured out, it's easy to get lists loaded for reps and give them the ability to manage those leads