I have had nothing but bad luck with mine.
I just can't seem to get it to stay connected to my iPad or iPhone.
I use plenty of Bluetooth devices (not at the same time as iGrill) every day, and I just can't get this thing to stay connected for more than a few minutes..
It's a bummer.
I bought it on eBay and the iDevices online help request makes you check a box that says
"Our customer support team can only authorize returns for a refund for purchases made through our Online Store within 30 calendar days from the date of purchase. Returns are not accepted after 30 days."
so I'm sure I won't be getting any love from them.
Just be aware that your cash may as well be lighting your firebox if you have a problematic unit from iDevices.
I'll repost if I ever hear from iDevices or get any help.