Let's start with something positive: It is a pretty package and a wonderful concept. Now on to reality.
The App for the iPad installs without a problem and the device package, compared to many packaging "systems" is pretty simple and easy to open. Now the tricky part ... follow the quick-start instructions. Did you buy a micro phillips head screwdriver? do you have one laying around? Ooops, you're gonna need one to put the battery in, so grab something sharp to take out the microscrew that holds down the battery compartment. Great, once you have the battery in and the App installed, it's time to turn the stylus on. One end is a silver cap with the universal symbol for "power" ... the circle with a short radius line. Go ahead and push the button and try out the pen. How is it working? Are you able to select colors and different types of things ... pens, markers, pencils, etc? Does it color well? Okay, if your experience is/was like mine ... nothing happened or is happening. The thing doesn't seem to work. You could go into settings and change it to "finger mode." Sure, try that one first to see what making a mark should be like. Want to try the stylus that you paid $30 for?
Okay, lets try it again. Is it on? Yes, I know the button neither clicks or seems to move at all, but that is the ON button. Is it working yet? Oh, by the way, here is a quick tip that is not explained anywhere... on the side of the stylus there is the name "Crayola" on a grey oval background. When the pen/stylus is ON that oval will light up. Is yours lit? Probably not, so break out that sharp knife point, take out the screw and replace the provided cheap battery with one that you surely bought along with the iMarker device and try that one out. With the new battery in, go back and start coloring ... selecting colors, ipens, imarkers, etc. How is it working as compared to using your finger? Wait, is it working? Is the light on at all. Okay, the light is on and you still are not able to color or make any virtual/digital marks? Look closer ... see what looks like a scratch? That may be what your stylus did. Try holding it differently. Try a different angle. Working? Go back and try using the finger mode and see how it should work. Now try the stylus again. Anything? Did your kids try it? Have they moved onto a different toy? Probably so.
So that is/was my experience. I had the thing out of the box for about 5 hours. My kids were really interested in it and I had decent hopes. MY KIDS WERE FRUSTRATED WITH IT. My 6 year old was screaming that it kept stopping and wouldn't work. I saw her "drawing" over and over an area trying to color in a space and nothing would happen. On occasion a few scratch marks would appear. About 20 minutes later somehow she figured out how to hold it differently or something unknown happened, but she was able to color in fairly broad strokes but nothing in any detail. SHE complained that it was easier to use her finger.
I couldn't imagine that there would be something on the market for around $30 carying a usually reputable name like Crayola (although made by "Griffin Tech") that doesn't work. I would think that if it didn't work that Crayola would pull its name from the item or consumers would return so many that stores would stop selling it.
With the kids off to bed I sat down to try and see what the issue was. An hour into it and I got the iMarker to work, but it's neither percise or consistent. Did I just get a bad one out of the batch of perfectly working ones? Perhaps. However, there were enough initial reviews on Amazon that pretty much said the same thing I experienced, that I can't place all my hopes in just an isolated incident.
If you are okay as an adult having your attempts at coloring looking like you were on crack or were completed by an infant, go ahead and make the investment. You may also succeed in having your children creatively regress, start hating Crayola or choose to start using their fingers again for other tasks like eating; (remember teaching them to use a fork - perhaps you should have waited till they were a teenager)
This iMarker could be the perfect example of company (Griffin) who had a decent idea that they could never get to work, but some executive realized that if they pay a well known company (Crayola) enough to use their name, perhaps people just wouldn't notice whether or not their kids used it. But if that is the case, the box is neither big enough or interesting enough for kids to scrap the toy and just enjoy playing with the box.