3.5" vs. 5" tips

I’m looking into investing in a set of interchangeable needles and I’d love to hear the pros and cons of 3.5" tips and 5" tips before putting that kind of money down… TIA

Welcome to the forum!
I’ve only tried the small diameter 3.5" needles and I didn’t care for them. They seem to be too much of a strain on hands and fingers. I do know other knitters who love them however. I’d suggest buying a fixed 3.5" needle for a small project or swatch and seeing what you think about it.