I have the 9 gallon kettle I use for BIAB. Works fine. I've had it for about 4 months and have done 7 BIAB batches. I wanted a 10 gallon but didn't want to wait until they came in but I'm making do.
It keeps the heat very well for my mash. In an hour, I rarely have to add any heat to keep the mash temps I need.
Wherever you go, there you are!