I get more of a relaxed sensation..
Rather then a sad one.
It's good, but the melodies and the chords don't give me the feeling of sadness. I do enjoy all the effects you put into the song, and as repetitive as the track overall, it does have something in there that spices it up and keeps it from being seriously repetitive. It's almost repetitive in a good way.
I like this song a lot. It doesn't necessarily go for that sad feeling you were trying to get at but it's still good.