Reform's main line is "all other parties are shit, we will reform government once and for all".
And that's about all they have to say. They make some mutterings about immigration, because they know that's a hot topic; and like Boris Johnson did, they look to see which way the wind of public mood is blowing, they run in that direction, and they say "follow us, we promise you the moon on a stick, if you vote for us". If that wind changes, they will probably change their words as well, as they have no real principles of their own, other than "the government of the day is shit", and when people are not listening "we will make ourselves even richer than Johnson and Blair did, while destroying EVERYTHING".
They have little or nothing to say about how they will achieve their miracles; and the worst thing is, not many journalists are even asking them.
They are the mystery box, the mystery big red button labelled "press me", and as one commentator put it, "a party of contrarians", who oppose everything the present government does, while cunningly not saying what they would do differently, and hoping nobody notices this.