Just a few comments:
Eventhough Fretmentor refered to the song as more of a beginner tune, i found a few things that exercise my rather small brain..
I really like the little melodic rift on the 7th measure D chord. Sounds cool and challenges the use of my pinky. Can be used in other tunes as well. I have been playing it over and over.
I like the fact that there are two versions of the melody. The second incorporates interesting syncopation and pull offs
The last D chord bass note run is also challenging to play correctly but adds an distinctive end run. It also challenges the pinky.
!