I use a renko footprint chart for trading along with other time frames for screening direction. I find it much more useful than time based charts. To each his own. Since I trade a smaller time frame the renko seems to be the best chart for me. Adding the footprint to it allows me to see imbalance clearer.
Been awhile, but don't you have to adjust the brick size depending on the Price and Volatility of the underlying? If I recall correctly, that's the issue I had when I tried Renko some years ago. I can't quickly go from one Instrument to another without compensating for the change and you have to get a grasp of what the "proper" brick size is for each. I haven't a platform running at the moment so I'm relying on my memory; sorry if this is inaccurate.
Everything looks good in hindsight. I haven’t found anything better then a candlestick chart with a couple moving averages