In our business, we're building software -- not software tools. I give my engineers full reign to determine what tools they use. For our build vs. buy evaluation, we don't have a need to modify or extend tooling beyond their existing capabilities (I find the JetBrains plug-in model fairly decent.) We use a lot of JetBrains tools in our operation.

It all comes down to build/buy assessment, because build still costs money. JetBrains has a price point that puts a tight margin on that build decision.