I have been using a fireboard for the last couple of months (switched from a guru digiq) and I will say that so far it has performed fantastically. I was looking for a single unit that would monitor up to 5 different meats and also run the fan for competitions.
I initially purchased it for the 6 probe ports and the ability to run my fan but found the Bluetooth/WiFi connection to be really convenient and allowed me much more freedom to run around and catch up with friends instead of having to sit and watch the pit come up to temp.
It does all sorts of graphing that can be exported into excel and also allows for quite a bit of customization in terms of naming cooks or probes so that they are easy to track. I can’t imagine wanting any more data than what this makes available.
There are quite a few reviews online now showing its operation and how customizable it is as well as reviews of probe accuracy. In terms of the probes, they seem more like industrial probes to me than the typical commercial probes you get with all the other temp controllers/monitors. Some have even done experiments with the probes submerged in water.
It is one of the more expensive units on the market now, but if your needs are similar to mine, I can’t think of another unit on the market that does as much as the fireboard and is rated as high as the fireboard is.