Welp, let's see. I think what hurt your ears was that synth I used with a very low amount of attack time, making it nearly click. That can be annoying to some people but some others do like it more than a standard synth. The wrenches would actually be classified as hats, believe it or not. :P
I'd add more flavor, yeah, but now that it's in a loop all I'm motivated to do is make a whole new thing, possibly like this.