Appreciate your input. The 80 ohm version supposedly has a little more bass (I think the 32 ohm has enough as it is) and a little less treble. The 32 ohm and 250 ohm are very similar.
Anyway, I’ve gotten the impression that the 598 cs is not very popular, but I may still give it a try if I have a chance. Not to say that it’s bad or anything, I just don’t know how I’ll feel about it until I try it. If I don’t like it I’ll try stick with the 770’s. Aside from what sounds like an overdone treble, they check all the boxes for me and provide great quality for a phone that cost less than $200.
For the record, I got the 32 ohm to be on the safe side as I heard from some they wouldn’t drive well on an iPhone, and I also needed the shorter cable for better portability.