I had a Beville soft top for over 15 years and loved it.  Used it at least several times a day because I'm an avid tea drinker.  Finally it died of old age.  ;-)  So I ordered a new one.  Works just as great as the old one.  Amazingly it still cost just the same.  I can continue to drank tea for the rest of my days.  I'm 77 so this pot might outlast me.