I've been playing AC Syndicate over the past month or so - I'm happy to say it's a return to form and a million times better than AC Unity. That said though, I'm glad they're finally giving the game a rest this year.
The combat is a lot better and I've really enjoyed all the side stuff like fight club, races, sabotaging shipments etc. Only real criticisms is that I think the running is a little slow and the horse riding is a little on the slow side too - thoroughly enjoy ramming other carriages though!