My advice, based on my trading experience is to avoid anything lower than 4H. Trading the lower charts is usually a hit and miss game. It might be exciting to be trading them everyday, along with the news events, but eventually it will become stressful and unrewarding.
I have been beaten up by those charts many times, only finding success on the higher charts.
Take this example of the NZD CAD earlier this year. Traders would have tried get in on it following the Interest rate decision by the RBNZ. The movement was sharp and some may have been able to get 40 Pips from the immediate move. But like most news trading, you wonder if 40, 30, 20, 60 is enough or can you get more? Since the decision also took place towards the end of the trading day, you may have been reluctant to hold overnight.
However, someone who would have been using the higher time frame would have already made their decision for entry and exit for much more pips
This trade was done based solely on the pattern and signal on the Daily Chart.
Take a look at my blog (drfxtrading.blogspot.com) as well as my thread in Swing Trading. You will see similar examples of trades and analysis done on these charts were trading is a lot simpler. If you are interested then you can get the Manual I developed based on this approach.