well, a good option is to buy second hand pedals, then if they don't do it for you (assuming they are sold at a fair price) you can sell them for little or no loss then try something else out. I do think the nature of this pedal is in the same ball park as the JHS.
The thing is, I've tried a lot of dirt and o/d pedals, and the bass you use, and your amp, etc, makes such a difference. I have pedals that sound great when i use my P bass and not nearly as good when I use my jazz, and vice-versa. you'll only know you really like something when you try it through your own setup. I'm selling this as it sounds great with my jazz, but my BB preamp sounds better when I use my P bass, and that's the bass seem to be using these days!