Kettlebell training

Just wondering if anyone is excerising with them and what your results have been.  I have been using them for about 2 weeks and love it.  Would like ot know what your results are at 3 and 6 months. 

Hello Firerobz,

Can you tell me which program you are using, I am searching for a program I found the firm kettle bell program, the ratings are ok I will continue  my search until I find something for beginners,My upper body is very weak.