What I liked at first was the look of them, with the bling, because I have hankered for a red unit with a red LED since I started ordering. What SOLD me on them, however, is the draw, so smooth and easy, and being auto, it more readily simulates my analog experience, which is what I have been looking for. No manual or auto batt I've tried previously has stood up to the comparison. And then, to seal the deal, I have two units; by alternating them out, I have to charge them ONCE a day. I think that is incredible, and has made my life so much simpler. Now, if they will show an acceptable amount of longevity before I have to replace them, I will be a fan for life. I'm a convert.
And I might mention, I've barely touched my PT since these beauties arrived.

I use cool carts almost exclusively, so I can't address performance of them specifically with a WOW carto. I find the WOW cartos to taste burny with all batterys and the PT, comparatively, so I'm no judge.