At the 2016 Ignite conference LucidChart received a few gongs in the Office App awards.
Lucidchart Diagrams for PowerPoint Add-in won the “People’s Choice Award” and a second place award for “Most Business Value for an Office Add-in.”.
Source: LucidChart
Office-Watch.com had a look at Lucidchart a few months ago.
The PowerPoint addin lets you copy a chart (or, at least, an image of the chart) into a presentation.