I am using Zaggsparq since 8 months and it's working fine, having no issues with it. I bought this when there was 50% on it means at that time the price was $200 and i got it for $99.99. At that time this was a good deal.
now the price is 99.99 and I get it for 50% off...xp
and I bought some shields as well for iPads and iPhone