Aside from the anecdotal opinion of a few users here (most notably Truff), who KEEPS SAYING that ZenFire is any faster than TT?
I tried the NinjaTrader trial through Mirusfutures -- to me it seemed like NT and X-trader were getting the indentical, non-filtered, tick by tick data from the CME. I ran them side by side and could see no difference whatsoever.
The difference, to me, was this: I couldn't stand the NT platform. It was sluggish, and resource-hogful. X-trader may not be elegant, but its lean and rock solid.
Anyway -- "ZenFire" sounds like its some kind of new data provider, but as far as I can glean, it's just NinjaTrader leasing its own data through CME (or CBOT); they don't have Eurex yet IIRC.
I am more than willing to be proven wrong about anything I've stated here. I am not the final word, but I wouldn't mind hearing something substantial.