It's great as it's not windy like it is in the summer. We've been to Marrakech too which is a great but very full-on. Essaouira is much slower paced and chilled but still really interesting and the people are so lovely.
Any other questions just shoot me a DM.
Sorry, off-topic, but I should very much like to hear what Essaouira is like at this time of year, or generally.