I have the iGrill2 and like it. It can handle up to 4 probes and works with an iPhone/iPad app over bluetooth. You can view the temps in a time-stamped line graph over the entire length of your cook. It's very helpful for overnight cooks -- you can see exactly where the pit and meat temps were at any given time. The graph also shows a big blip when you open the lid, so it's easy to check the last time you mopped or spritzed. I used to keep a note pad to record temps during a cook, but don't need to do that anymore.