Growth stocks are attractive to many investors, as above-average financial growth helps these stocks easily grab the market's attention and produce exceptional returns. But finding a great growth stock is not easy at all.By their very nature, these stocks carry above-average risk and volatility. Moreover, if a company's growth story is over or nearing its end, betting on it could lead to significant loss.However, it's pretty easy to find cutting-edge growth stocks with the help of the Zacks Growth Style Score (part of the Zacks Style Scores system), which looks beyond the traditional growth attributes to analyze a company's real growth prospects.National Storage (NSA) is on the list of such stocks currently recommended by our proprietary system. In addition to a favorable Growth Score, it carries a top Zacks Rank.Research shows that stocks carrying the best growth features consistently beat the market. And returns are even better for stocks that possess the combination of a Growth Score of A or B and a Zacks Rank #1 (Strong Buy) or 2 (Buy).While there are numerous reasons why the stock of this real estate investment trust is a great growth pick right now, we have highlighted three of the most important factors below:Earnings GrowthEarnings growth is arguably the most important factor, as stocks exhibiting exceptionally surging profit levels tend to attract the attention of most investors. And for growth investors, double-digit earnings growth is definitely preferable, and often an indication of strong prospects (and stock price gains) for the company under consideration.While the historical EPS growth rate for National Storage is 14.3%, investors should actually focus on the projected growth. The company's EPS is expected to grow 25.7% this year, crushing the industry average, which calls for EPS growth of 9.3%.Cash Flow GrowthWhile cash is the lifeblood of any business, higher-than-average cash flow growth is more important and beneficial for growth-oriented companies than for mature companies. That's because, growth in cash flow enables these companies to expand their businesses without depending on expensive outside funds.Right now, year-over-year cash flow growth for National Storage is 58.7%, which is higher than many of its peers. In fact, the rate compares to the industry average of 9.6%.While investors should actually consider the current cash flow growth, it's worth taking a look at the historical rate too for putting the current reading into proper perspective. The company's annualized cash flow growth rate has been 29.6% over the past 3-5 years versus the industry average of 9.2%.Promising Earnings Estimate RevisionsSuperiority of a stock in terms of the metrics outlined above can be further validated by looking at the trend in earnings estimate revisions. A positive trend is of course favorable here. Empirical research shows that there is a strong correlation between trends in earnings estimate revisions and near-term stock price movements.The current-year earnings estimates for National Storage have been revising upward. The Zacks Consensus Estimate for the current year has surged 0.1% over the past month.Bottom LineWhile the overall earnings estimate revisions have made National Storage a Zacks Rank #2 stock, it has earned itself a Growth Score of A based on a number of factors, including the ones discussed above.You can see the complete list of today's Zacks #1 Rank (Strong Buy) stocks here.This combination indicates that National Storage is a potential outperformer and a solid choice for growth investors. Just Released: Zacks Top 10 Stocks for 2022 In addition to the investment ideas discussed above, would you like to know about our 10 top picks for the entirety of 2022? From inception in 2012 through 2021, the Zacks Top 10 Stocks portfolios gained an impressive +1,001.2% versus the S&P 500’s +348.7%. Now our Director of Research has combed through 4,000 companies covered by the Zacks Rank and has handpicked the best 10 tickers to buy and hold. Don’t miss your chance to get in…because the sooner you do, the more upside you stand to grab.See Stocks Now >>Want the latest recommendations from Zacks Investment Research? Today, you can download 7 Best Stocks for the Next 30 Days. Click to get this free report National Storage Affiliates Trust (NSA): Free Stock Analysis Report To read this article on Zacks.com click here.