Investment Portfolio Using Low Cost ETF

I prefer using exchange traded funds (ETF) for my investments. There are several reasons for this:

• Low cost, especially when using Vanguard ETF which have the lowest expense ratios;
• Passively managed and perform as well as actively managed funds, but without the cost; and
• They are easy to trade and without additional costs such as selling charges (i.e. no load).

I am 33 and prefer the following portfolio:

VNQ - Vanguard REIT - 15%
VTI - Vanguard Total US Stock Market - 25%
VEU - Vanguard World Stock (excl. US) - 25%
VWO - Vanguard Emerging Market - 10%
BND - Vanguard Total Bond Market - 25%