Have a Pro and the extra space is handy for a 12in pizza with a bit of space to play and a 2S that I've not used since as I'm 100% gas for convenience now (have a Roccbox too)
The only time I've cooked multiple items at once was a couple of folded flatbread parcels and that could have been done in the standard size.

Tried steaks and burgers in it but it makes a bloody mess and not as good as done on the egg.

If I was buying now I'd look at the Koda.