I took these bells for having a new sound 
and I found interesting. 
 
The sound is well balanced, loud to cut trough an amplified ensamble (of course on some limit) 
and can be used for several purposes, 
for recording, 
for to give some rhythmic pulse 
and the most important factor: The pitch isn't nasty! 
Completely satisfied 
 
Pros: 
Robust, cheap but effective 
 
Cons: 
No cons