This ETF offers exposure to mid cap stocks that pay dividends on a regular basis, making DON a potentially useful tool for investors looking to fine tune their domestic equity exposure or implement a tilt towards a specific investment style. Investors constructing a long-term portfolio would be better off with a fund such as MDY or IJH that includes greater depth of holdings and a mix of various styles. Dividend-focused strategies often come with biases towards specific sectors such as real estate and away from technology, and may outperform more broadly-based indexes in certain economic environments such as recessions. Nevertheless, DON has a wide diversity of holdings, containing more than 340 securities in total. Furthermore, the fund does a great job of spreading out assets among the holdings; the top ten make up just 10.5% of the fund's total assets and no one firm makes up more than 1.5% of assets. However, the fund does charge a little more than most in the category, suggesting that cost conscious investors may be better served by a product such as VOT which charges roughly half of the expenses as this WisdomTree fund. DON is a fine ETF, but there are a number of alternatives out there that offer more compelling methodologies, or potentially better execution at a cheaper price. However, if investors are dead set on looking at dividend paying equities in this space, this is a quality fund that will likely satisfy the dual objectives of yield and capital appreciation.