Recommended. The spreads are amongst the best, so it costs less to open a trade and customer service is on the whole very good. The platform itself is good, although not as developed as CMC, but my understanding is that they are trying to improve it. The mobile app is outstanding. They do make a charge for using charts which is refunded if you place a set number of trades.
Personally, I would say IG are probably the market leaders, and a long way ahead of some.