I really like the timer function for heating strike water - that has been one of the nicest things about AI1 systems (I have an Anvil Foundry 5 gallon set up). I still use a separate, larger 2 or 3 vessel approach on my 10 gallon batches (depending on batch sparge - 2 vessel or HERMS recirculation mash - 3 vessel), but I will often heat strike water in my Foundry for the large batches, because I can go to 8.5 gallons on it. Great devices, indeed.