I just received mine from Amazon, and I was very pleased at how easy it is to set up and use. It can run on batteries, but I used the included AC adapter. Simply plug in the unit, place your items inside, close the lid, and snap the clasp closed. The machine immediately starts humming as it creats a vacuum: about two minutes to complete the process. I was able to fit in a loaf of bread, several muffins and 6 bananas. To open, simply undo the clasp and wait a few seconds. Only time will tell, of course, if the iTouchless fresh sealer will hold up to constant use. I shall update in a few months.
UPDATE: Update sooner than I thought: the machine works well. However, a brief word about bananas.
If you place a green banana inside the iTouchless, vacuum seal, then let it be for a week, at the end of the week the banana will still be green (or slightly yellowing). However, open the banana and it will be well-ripen. The banana simply ripens as if it were out on the counter for the week. All you do is keep the skin looking newish. The 'green' banana I had this morning had the inside of an almost blackened banana: very mushy. It is obvious that the 'meat' of a banana cares nothing for our feeble attempts to prolong its life.
The iTouchless does work well with bread and apples, to date. Again, very easy to use. I still recommend, just do not purchase for the sole purpose of keeping bananas fresh longer.
UPDATE FEBRUARY 15, 2008: I agree with the 'one star' reviewer: the unit does generate some heat. Not enough to melt chocolate or such, but noticeable. I would not try to keep items like cherries, grapes, etc., inside this iTouchless. When I tried items that have a high moisture content there would soon be moisture inside the bubble top, and leads to spoilage.
After a year of usage I would downgrade my recommendation to 3 stars. It is good within its narrow range, but the heat it generates does, as the one-star reviewer noted, actually speed up molding in some fruits. Pity.