The website and mobile app work quite well. With all the recent market volatility, I've not had any cases of being unable to access the platforms. I've increased my trading activity in the last 7 months, and in this time I've never had a re-quote.
Stable technology, no re-quotes, and a wide range of instruments to trade on, all these combine to make IG my preferred Spread betting firm.
One thing I would love to see are Option extended to cover equities on the spread betting platform