Good point. His one weakness has always been his 2nd serve, but he has improved it greatly. I think he's playing the best tennis of his career right now.
I'm not a great tennis fan, but really enjoy watching the top.players in the latter stages of the big tournaments - and Murray has really improved over the last year, and is finally realising his full potential. Federer and Nadal are on the wane, so Djokovic is his main rival and they are so evenly matched, that the return of Lendl could be the final factor in seeing Murray win some more majors.