Obviously, there is a lot more you can do with QGIS. You can produce more complex maps, calculate fields, do 3D modelling or automate tasks by using QGIS and python. After a week of playing around with the tool, I think I got a good feel for the software and would definitely consider it for future projects.
If you are interested in creating maps, then I’d recommend taking a look at the #30DayMapChallenge. It is an annual cartographic challenge where participants from all over the world created beautiful maps on the theme of each day. You can find some great examples in the official repository or follow the hashtag on social media. The repository also lists a number of tools and resources to get you started with visualising geospatial data.