I was a track data client that switched.
I can't tell you in millisecond precision about the Track Data feed.
Somethings have a "feel" to them and in switching (aside from one small issue) the DTN feed has been far more stable than the Track Data feed. I cant whine about a 500 millisecond different in data timing. It all depends upon how far you are away from your server AND the server that is providing the data, etc....
IOur Author states that Esignal has servers in the EU, so if DTN doesnt, there will be some data lag.
Track Data had a habit of going down on me randomly. DTN has been rock solid. Up for 5 days straight at a time, no restarts or re-logins.
(I joined them 1st of Feb)
I watch ticks, but trade charts so a 1/2 second data delay won't kill me. For you rapid fire daytraders, though.
Also I noticed that with my charting software, the bid ask spread and price are updated FASTER on the chart than they are in the tick windows. I am not sure what software the submitter uses, but he should consider how the software handles incoming data and sparses it out.
Ok. I sound like a DTN fan. Yes I am. Now for the one thing I hate.
Track Data was $55.00 for the subscription I had and provided REAL TIME FOREX data feed as part of that pkg.
DTN requires me to spend an additional $25/month over the $55/month I am paying.
Thats my only complaint.