No, he was a pretty good and easy jungler to learn pre-rework, but after his rework (note-> Change for the sake of change) he has dropped heavily in winrate and playrate.
You might see people defending his kit, but most of these are people who never played warwick pre-rework seriously in their ranked games, and they sure as hell dont play him anymore considering his low af playrate.
If you like warwick, by all means keep playing him. But if you are struggling with his buggy/awkward to use kit there are many other better junglers out there who are easier and more effective at their job. for example - Rammus, jax, udyr. If you're looking for a jungler with more damage Eve is a good pickup too!