The vaccine is approved for use in adults aged 60 and over. So, I'm not sure it's being pushed on the general population.
The only person I know who got the Shingles vaccination also developed Shingles a year later, so that doesn't say much for it's effectiveness.
I've had Shingles and it is extremely unpleasant, painful, and rather long-lasting. I think my chances of any recurrence are fairly slim, and about the same with and without the vaccine, so I'm not going to bother with the shot.