Another good Syntrus groove
The type of low-level beat/groove stuff you provide is always good for a listen, and most importantly, they all sound different (which is the mark of a good music-maker). Keep up that competence, man, because it works wonders on your listening audience.
Though as stated, this doesn't change much over the course of the song, I don't see that as necessarily detrimental; lots of funk or blues do the exact same thing, and it works very well (I personally like the style and utilize it myself).
If I can criticize anything, though, it's that the main synth could use a bit more variety... maybe some differing dynamics at the beginning and the end, like fading in and out... Just a thought, something to liven it up.
As well, this loops very well.
So anyway, this is pretty darn enjoyable, and i commend your effort.