Quote from hprop:
I've been with Advantage since this spring, and am pretty satisfied. It's not really for retail traders though - it's geared for professional traders with exchange memberships.
I think I could have squeezed them more on commissions, but I came from trading with IB so I'm of course happy either way. They're very competitive on Eurex pricing.
Their margin policy is negotiable, but since position size should be more a function of money management and trade expectations it's not important for me. I have the limits for spreading the products I'm working with, so I'm not complaining here. I'd be surprised if you'd get 500 dollar NQs though if you're planning on trading outright.
I have a server at the Equinix facility, and this is pretty stable. There was a couple of problems in the beginning, but for the most part it's been working well. Their tech staff is knowledgable, polite and try their best. They have 24h tech desk during the week, but during Euro hours it's just one guy I think. They just have offered or are about to offer proximity hosting in Frankfurt as well. I think Deutsche Boerse charges a fortune for that though, unless the prices have dropped this year.
I did have some nasty problems in the beginning, which took a while to fix. It was related to fill reports from Eurex products, and I was often left filled with no confirmations, forcing me to call in to the exchange and find my net positions.
They have a wide range of platforms; Cunningham, CQG, Ninja, and Orc. Maybe Pats also, not sure. I use TT Pro, no experience of gateways down to CBOT, CME or Eurex.
So all in all, no reason not to go with Advantage - very service minded client relations and risk department. And very good relations with TT if that's your platform.