If you think IntelliJ is bad, what do you think of Eclipse?
One of my worst IDE experiences was working on a Scala project in Eclipse, with a whole ton of plugins installed. Latency was incredibly high. It was like working on a lagged 300 baud terminal.
... aside from the fact that I can compile some projects faster than it takes just to start up.
If IntelliJ were a car, it'd be gas guzzling SUV with a hole in the gas tank.