its data accuracy as well as varity of specification to check locations, sending instant pushup notification to people in bulk.

You can make changes in the running campaigns and publish which is very practical.

Leanplum is a cross-channel CRM tool for personalized communication. Very flexible segmentation and A/B testing. My favorite part is the A/B test reporting, where you can apply statistics, slice + dice results, and evaluate across hundreds of metrics retroactively. Our previous tool had limited reporting, triggering was hard, segmentation required a lot of effort, and there was no email out of the box.