The main things I noticed are the cat food I eat tastes a lot better, and I curse at children and beat up elders a lot less, but I fart a lot more now (I don't know if more farting is an improvement or not)
That sort of depends on your significant other. The hubby and I have set up an Olympic style judging system on burps and farts. It is a composite 1-10 score based on sound and smell.
Mine you we have been together 20+ years and are way past the trying to hide passing gas phase in the relationship.