Farage is quite the slick politician who performs well on television and manages to brush off any argument against him with a chuckle. But when it comes down to substance he is basically a Thatcherite: free markets, reined in government spending and British nationalism. For example, his party was to scrap a lot of progressive taxes, ramp up government spending and carry out billions of cuts to the public sector over there.
Those ideas helped lead to the economic crash in the UK and also significantly antagonized (for want of a better word) a lot of Irish people.
Edit:* As it happens, Ukip's Communications secretary is Irish and was a teacher in my school. The guy was a complete religious fundamentalist and published this book about a "culture of false [abuse] allegations against the Church" after he left.