During my first Sitefinity project, I encountered few problems, in which some of them are explained here.
Sitefinity - Caching issue for pages with NO CACHING profileDecember 18, 2017 · 2 min read
If you experiencing cache issue for pages with No Caching profile in Sitefinity, check this post.
Sitefinity - Read localized resource labels in MVC widgetDecember 07, 2017 · 1 min read
Explains how to get localized labels in Sitefinity MVC widgets.