ReSharper is a code analysis and debugging tool available as an extender to Visual Studio. Its features are also present in JetBrain's .NET IDE, Rider.
Well suited: for interfaces between machines data and applications. Made as a service. For web applications in factories where you don't have access to thick clients due to the environment. not well suited: quick measurements and fast data transitions between different applications. When time dependency is needed, then you better can choose other solutions.
ReSharper is the best all-in-one tool for Visual Studio that I have encountered. It contains many features not found in Visual Studio Enterprise, and those features already in Visual Studio provide much better implementations. I would recommend this to all developers, with the only people who will find it a detriment are developers running older, slower machines (due to ReSharper's resource requirements).
ReSharper is very familiar if you already know Visual Studio. JetBrains does have an excellent IDE (Rider); however, since ReSharper is an extension to Visual Studio, you only need to learn what their tools add, not a whole new way of working. I have found the extension's interface to be straightforward, although perhaps due to the massive range of features, navigating the menus is a little time-consuming until your muscle memory kicks in. Maybe a feature search tool would help make usability a 10 out of 10?
We choose ASP.NET because our core business is working with the SAP HANA database using SAP Business One. We can develop state-of-the-art applications with Razor and Visual Studio 2022 fast and with excellent application performance response. Working SAP Hana with JAVA could be more challenging because it has fewer developers communities, and it could be harder to find a solution for a question.
ReSharper does what it does very well because it operates inside the IDE you are already using. It provides advanced features that function far above and beyond what Visual Studio Professional offers and does not require you to learn another IDE like JetBrain's excellent IDE Rider. My only wish is that ReSharper had a Visual Studio Code plugin!
ReSharper is our go-to tool for file formatting. All of our code process must be formatted correctly, and ReSharper makes that an easy to access keyboard shortcut.