Microsoft Visual Studio

a) It's feature-rich and provides strong and seamless integrations with several other products from the Microsoft family.
b) One can develop any kind of application written using any kind of technology through this IDE be it .Net, Java, JavaScript, etc.
c) The software is easily extensible through extensions that help one integrate third-party components easily.
d) It has an intelligent auto-complete sensor that provides accurate suggestions for the variable names you try to create, libraries you try to add into the current code class file, and even tells you all the dependencies of the class in a very easy to read format.
e) There are individual wndows for each kind of tasks like examining the current project and solution, examining the tests written for the application, checking the variable watches, compiler output, errors, etc to name a few.
f) The UI can be customized to one's heart's content. The windows can be arranged as per the needs, multiple windows can be grouped into tabs for easy navigation.
g) It's even intelligent to suggest ways to improve the performance of the application that you are trying to create and how to make the project solution load faster.

a) The IDE takes a long time to load and once it's fully active with the project solution loaded, it really takes up a lot of RAM making even a good and powerful system slow down in the long run.
b) The IDE crashes occasionally, especially when you do a lot of debugging using it. However, when the app restarts after the crash, it does give you the option to recover the last saved work. So that's handy.
c) The menu is way too vast and it's easy to get lost in them trying to find out a certain option. Thankfully there is a global search box for the app to quickly type and find the option you are looking for.
d) The updates are released quite frequently. Since each update is large (> 500MB), its takes a while to update the software thereby interrupting your work.