I am using water, spaghnum and paper towel rooting methods. It is true water can take a while, but it depends on various factors, ie variety, quality of cuttings, and when the cutting was taken and what season you are in. Paper towel I think I am not too enthusiastic about even though it seems quite popular. I used a fungicide on cuttings and I still see mold issues in paper towel in baggie. As for spaghnum moss, I am having some success and will continue to root that way as well as with water. As for water, I use a bubbling system and aeration stone, I notice that the roots that this system produces can be quite vigorous and complex. I add nutrients and rapid start root enhancer to the water. Even so, the process can take a while, maybe a couple of weeks longer than other methods. I have lost a few cuttings after healthy roots grew and I transplanted into rooting medium. It may have been too moist so I am still working out the "stage 2" kinks.