The first game i tried was Zelda, Orinca of time. Well lets say. I didn't realize the video could get that bad. Sound appears fine for the 5 minutes i played. There are japaniese letters on the name entry screen instead of the dark english alphabet (yes i know it is greek, but the order of the letters makes it english).
Then once you get into play almost a 3rd of the screen at all times seems stretchs off as if one pixel was from the center and stretch off to all sides. Very noticable and makes the game very hard to play. Ironicaly there is a small part of the game in the pause/menu section that looks better than most other emulators but everything else is far worse.
Hopefully we will see a 0.9.9.1 release very soon fixing all the problems that didn't excist in the last one since obviously the 3 months of beta testing was done by one man who played only one game and it wasn't zelda.
The video problems are just with the plugin. Try using gln64 and you should get good video. Also, afaik the japanese letters appeared for me in 0.85, I don't know if it happened to other people but it did for me. I also doubt there will be a 0.9.9.1 release. Most likely the next release will be the final 1.0 release.