Debugging is hard on QlikScripts when we have large numbers of scripts to handle, having a tool that is compelling and pointing out the issue ahead of time like a normal development environment would really help.
Integration with the IDE environment would be one of the ways I could suggest an example: VS Code, Atom, etc.
Inbuilt git support is missing, which really difficult to version control. CI/CD pipeline is missing need to depend on third-party or need to buy additional components, which sometimes not needed on for certain organizations.
Documentation is hard to follow.
Qlik support will take some time take a bit of time to respond
We could build the project in a very short time as compare to other products, Qlik upgrades are impressive in recent time, Review collected by and hosted on G2.com.