hmmm...I'm not certain I'd consider it to be the easiest to start with, but probably a little less intense than some of the others.
I ended up having to take this for my last test on my CCNP and it was pretty straight forward. If you have the student guide, read through it a couple of times. I'd suggest focus harder on the QoS rather than the wireless topics. Don't totally skip it but if memory serves it was heavier on QoS.
However, I did have what I consider a huge advantage going into the test. At work we were just finishing an Autonomous AP deployment and getting ready to convert over to LWAPP and using the WCS and Controller. Plus, been working heavily with over-subscribed WAN links and implementing a lot of QoS.