Its not hard.. Just time consuming. Its all simple mechanics.
You do have to be careful though to keep track of where all the different sized bolts go for the oil pan. There was like 17 total I believe. I ended up drawing a picture of the oil pan and taping the different bolts to it to keep track of where they go. Other than that you are just unbolting the oil pan, unbolting the balance shaft, putting the in the BSD and hooking back up the pan. Its really not that hard. I waited till my car needed an oil change so I just did it all at once.