My ONLY problem with a larger party size (and I am sure it is only me and no one else) is feeling like I have to play zoomed out more and constantly in "tactical mode", being ready for anything. Smaller parties make it easier for me to play more zoomed in and have a (slightly) more immersive play.

Other than that I totally get what people are saying about 6 member party sizes. Especially at lower levels and especially for spell casters at lower levels. I appreciate the plethora of scrolls, but would it be better if they weren't so necessary?

Again, just me and YMMV.