I'm using it for the first time at the moment, and have had no problems so far. After ~160 turns I haven't had 1 CTD.
I'm playing as Getai, so haven't really been bothered by any naval invasions, but night battles are pretty cool. One thing I've found is that you might need to use the console to add this ability to FMs, as it doesn't kick in automatically until they get 5 or 6 command stars, which doesn't happen too often in EB (for reasons covered elsewhere).
Turn times seem a little quicker, but I've got a pretty new machine so they weren't that long anyway. I've probably gone from 20 seconds to 15 seconds between turns.
I actually found set-up quite easy. All of the files that need changing have been put into a single zip file, so it's just a matter of adding these to the relevant directories.
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