QlikView is more of a traditional, technical tool for shared business intelligence, data analytics and reporting. Whereas, Qlik Sense can be regarded as a modern data exploration platform. Although, both the tools are created on the same ground, which is to serve as a BI tool.
The community is great, but to be fair, there's a really steep curve when you get into set expressions and aggregations. I'd recommend learning to leverage the load scripts, too.
