I recently tried a low G from Hilo strings which is a bronze wound, compared to the copper wound. The bronze wound seemed to have less overpowering lows compared to other low Gs that I have used and matched better with my other strings..on my uke. Like Kekani said, it depends on the uke build. If the Pono doesn't project the trebles or perhaps if the strings don't match that uke, the low G may be overpowering. Strings really should be selected to match the instrument and your desired sound. It's great to see more and more uke owners trying out different strings. Guitar players do it all the time and have the same type of discussions and disagreements as we have on this forum.
I have a low G on my concert fluke and personally like how it sounds, good for Hawaiian songs. It takes some getting use to, especially if you are use to a small sound, like that of a soprano which some call "traditional" uke sound. For me, after listening to a lot of Hawaiian music, I tend to like the low G but play most of my other ukes without depending on the song. When I took lessons from Roy Sakuma Studio, I used low G because the songs they taught used the low G octave.