They have 0.26 average spread on eur/usd through DMA liquidity feed. I have access to web and advanced platforms. MT4, external platform through API, or order book with L2 dealer platform. No problem with back office support. I would say 24/7 instead of classic 24/5 working hours. Execution is really reliable and fast. In addition, IG offers seminars, market analysis and broad range of services on website.
I like that IG Markets now offers Nadex binary and spread contracts to US traders - fixed risk, high leverage trading even with the NFA/CFTC rules.