I was busy all sunday afternoon creating a similar setup than what I had with QQL for QCharts. I thought that once the trading day started I was going to run into problems with the feed, but that was not the case. In reality not only was the feed good the data was solid. Fast data, no hiccups, no disconnects, no bad ticks, no frozen data and at one point had about 300 stocks running. The charting tools are professional and the same can be said for L2, T&S and the indicators. All in all a good experience. One of the factors for the good feed may be my location (New York City) and the fact that I use a cable modem. Thanks to all for the advice.