The Welkin Suite offers an integrated development environment with 105 features (and growing). The vendor aims to help you automate the chores of development, and therefore enhance your coding velocity and increase the quality of your deliverable code.
I have tried using the Developer Console, Microsoft's Visual Studio Code with the Salesforce plugins and also Mavens Mate along with Sublime. The latter is deprecated. The rest are either options that are not as fully featured as The Welkin Suite or their setup time is much …