My experience has been a bit different. I had IMRT (X35) and cisplatin (X2) for tonsil cancer (SCC)(T2N2M0) nearly 3 years ago. I lost the ability to taste anything.

While salty, sour and bitter taste returned about 6 months after the end of treatment, and salivary function recovered to about 70% by 18 months, I still have to carry a water bottle and can only taste the first couple bites of sweet and it's not very sweet.

I'm not complaining at all -- I'm happy to be "cured" and have adjusted very well to my new normal taste buds. I lost 60 lbs (with a PEG) and resumed eating well enough to gain back 15 lbs.

Hope this helps. What it really shows is everyone's recovery is different.