FYI: In choosing the right mix of ETFs, less is often more.
For most investors, the choice frequently comes down to brand and fees. My advice is not to worry about whether you're paying .07% or 0.20%. Look instead for diversification and trading liquidity, keep fees to a minimum, and try to stay focused when you’re in a maze of choices.
Regards,
Ted
http://www.marketwatch.com/story/with-etfs-less-is-often-more-2015-02-19/print