JustDecompile has long been praised for having one of the cleanest, most "Visual Studio-like" interfaces in the decompilation market.
Telerik (now part of Progress) typically manages their downloads through a centralized account system. To get the of the offline installer, follow these steps: telerik justdecompile offline installer link
...the web installer will fail, leaving you unable to use the tool. JustDecompile has long been praised for having one