We've been through this before. BCH usability is the same as Bitcoin (other than address confusion issues), but fees are more than 1000x lower.
guess i wasn't there for it then. a block a minute is very usable. a block every two hours is not. the block lottery is fun but not very practical. either it settles down and then development can get to work or it remains a curio that's not going to attract users.
A block every 2 hours is not optimal, I agree. That's due to miners gaming the EDA for more block rewards.
Then again, most BTC users got used to 24 hours to confirm some of their transactions this year, how's that for usability? The worst I experienced was 3 days... oh and I did I mention I paid $3 in fees? Wow.