I was using a Fame LEF-329 Mini Power to supply a set consisting of BOSS GT1, BOSS FS2, DIGITECH Whammy 5 and VOX Big Bad Wah. There was always some hum, or even noticeable noise, specially when using combination of modeling effects.
After reading some reviews, I decided to give it a try to this HB PowwerPlant ISO-5 Pro.
The result was simply superb. No noise at all and extra power in two outputs (500mA), which I think it is preferable to supply the Whammy 5 (specs refer a nominal current of 263mA, but it seems it can go upper).
The Fame LEF-329 has the advantage of having 8 outputs.
But considering all, HB ISO-5 was enough for me, and I highly recommend this item.
And in case of need of extra outputs, I will not hesitate to buy one of the Harley Benton PowerPlant ISO-2 Pro or ISO-12 Pro models.