I think tastebuds are one if the things that are very individual in the recovery time. I have almost full taste back. The only two lagging taste profiles are red meat and chocolate. They have a flavor, just not tasty good as they used to be.

I would think that after a month you will see significant improvement. Then it's gradual from there.

I did go thru a bout of hyper smell ability which made everything smell rotten. That lasted about 2 weeks if I recall correctly.