My wife started to make her own at home three weeks ago. It has a funky sweet/sour taste and a pungent odor. We have both had an increase in energy and are more alert.
By coincidence, our grandson graduated from there yesterday but he has not come home yet so I'm hoping he can get me some "mothers".
I have my first batch brewing using KB as my starter. It's been three days and there is hope it's working.
The stuff is addictive and it's expensive to buy.