I think that everything they have done is fantastic. No you're not going to get back 100% of the original sounds.. They were high quality (mostly) royalty free sound bytes back in the 90s which might not be high quality today. They have managed to give every environment 100% more depth, and i think that the environment is equally as important as the gameplay. I can assure you that everything they have programmed into this game, none of us could do that (to that standard at least) give them credit for everything they have done to reintroduce this classic, nostalgic masterpiece. Every game has it's flaws, i can assure you even the AAA games you play people find glitches and bugs. This can be verified if you search game bugs on youtube.
The main issue is in fact that we are so used to playing the original, having every single screen possibly mapped into our brains that we freak out when a single thing is changed. We aren't in the 90's anymore, technology is evolving and hence so is gaming. Look at the Super Mario Series.. Recently on Wii U, 3D World was created. They have perfected using the classic side scrolling materials and adapting them into a 3D environment. JAW have done exactly that with Abe's Oddysee. Think of the Original Oddysee as the very first Mario game.. Now look at the NEW Super Mario Bros. Series.. They have kept the original concepts and gameplay and made it into a 2.5D game, just like JAW have done with Abe. A lot of people didn't like the New mario games because 'they were too fast' and 'there were too many new powerups to get used to' etc etc.. We all got used to it in the end, its just a shock factor that it's new. Once you all play New 'n' Tasty, you will all be overwhelmed by the new glorious 3D environments and new interactions the game has to offer and you will not think about all the teeeny flaws such as one of Abe's fingers looking out of place when he hoists a ledge..
Enjoy the game for the story it tells, because at the end of the day, people are fussing FAR too much over minor flaws when the original had MANY glitches and bugs which a lot of us use to our advantage nowadays (e.g Ledge Trick). Sorry for the long read, Peace out
