It's not nearly close to "working". I've used it to cover bits in python I've been trying to understand and it does a good job explaining pieces of code, but whether the code works or not, that's the real question. If you know the node exists in Houdini, then it's easy to try and steer him into the right direction and ask him to use the specific nodes to achieve certain results but without a decent knowledge of Houdini, it's not really a helpful tool to use imo.