I'm not sure who's saying that the Guru is easier to use than the Stoker, but I would disagree with that for practical use.
Sure, the Stoker is much more capable than the Guru in terms of its ability to serve up a webpage, acquire an ip address from your network, allow external control from ANY web-enabled device, control as many pits (theoretically) and as many food probes as you want, and offer Twitter support, and so it has more menus, choices, and complexity. But once you have the settings on your Stoker doe, you do not need to reset them every time it's turned on.
In fact, when I set up a cook, my Stoker sits in the tupperware container - after connecting the probes to the unit the only button I touch on the unit is the on/off button. Then I walk inside, pull up its webpage on my computer (by entering an ip address in the url of the web browser of any computer or web device), and set the desired pit temperature. That's it - it could not be easier.
The only button I have pressed on my Stoker since the first day I got it is the on/off switch.
If you do not use the computer interface, the Stoker is probably much more difficult to set up using the control unit than is the Guru, since it has a lot more complexity. So, if you plan to use your pit-minder without a computer, sure the Guru is easier to use.
I also control my Stoker from my phone. It does not require any additional software to do this. All you need is a Stoker, a modem connected to a wireless router (i.e. your home network), and an Airport Express/game adaptor/wireless bridge. Initial setup from the box to the internet takes 15-30 minutes.
I think the Stoker is widely misunderstood.
Mark