Works like a charm here on both Project64 1.6 and 2.0.
Tested games:
Doom 64,
GoldenEye 64,
Legend of Zelda, The - Ocarina of Time,
Legend of Zelda, The - Majora's Mask,
Mario Kart 64,
Paper Mario,
Perfect Dark,
Star Wars - Shadows of the Empire,
Super Mario 64,
Super Smash Bros.,
Yoshi's Story
All verified good dumps by myself.
I have been using Jabo's DirectSound plugins since I started using Project64 back in the 1.4 days.
I have thought of using your old v0.56 WIP 2 plugin for quite a few years but never bothered since I was OK with occasional crackling and pops in sound but this new release couldn't have come in a better time and it works great. Sound is mint!
Along with latest Glide64 Final, N-Rage plugins the N64 experience have never been better.
As for settings not being savable, it's not a big deal really.
EDIT:
By "Tested games", I mean playing them for 5 minutes each using my completed saves.
Just wanted to be clear on that.