My iSurge just arrived and I have just started using it -- finding out it quirks etc. It seems to be a good addition to my growing list of charging paraphernalia. There are however a few things you should know before pulling the trigger.
While its operation isn't complicated, it does have some issues. It appears solid, a little lighter than I expected but it is just a plug with an iPhone and USB port and three three prong surge protected (or so it says--612 joules limit) outlets. Not very complicated. The male plug on the back rotates thru 180 degrees --the unit works one way horizontally (the way you would use it if using the iPhone charging dock) or will work either direction vertically (USB at top or bottom). The only drawback I have found is that, to use the iPhone dock, your outlets on the wall MUST have the third prong (grounding prong) ON THE BOTTOM. My home is a little more than forty years old and most of my outlets are upside down for this orientation. Those outlets that have been replaced over the years are installed with this convention. This limits the flexibility for me but probably would not be a major issue for others, particularly if you live in newer construction. There are some workarounds anyway.
The outlets work. What else do you say about them? They are adequately sized -- could be tight if you have larger plugs. Three of the little iPad "mini-bricks" chargers would be a very tight fit side by side.
The night light is useful and has an on/off switch on it in case you find you don't want the light.
Included with the iPhone dock are two extra inserts which are variously sized. There is no reference to them in the extremely minimalist directions but they snap out -- pop up the front edge and lift out. You can choose the one that fits your phone the best. None of them would fit my iPhone 4 with Otterbox Reflex case on it. The unit ships with the midsize dock installed -- I found the smaller of the three fits my iPhone 4 (without case) the best and holds it snuggly.
I have not tried the USB port a lot -- charged my bluetooth headset quickly but that is all so far. I will update this if I discover anything amiss.
All in all, it seems to work well with no problems encountered yet.