The members' expenditure reports currently online I think are useful. Obviously, there is a certain level of detail there that either me writing a story or my neighbour who is curious about their MP can access. I think the more detailed it is, the better.
There's some criticism or concern about disclosing too much—for example, disclosing a pack of gum that's been expensed. That can lead to embarrassing stories that are characterized as “gotcha” journalism. To be fair, I think there are unfair stories that can be written about things that are expensed.
Again, I would repeat my original statement that I think the public is the judge of how much disclosure is too much.
I think the answer to your question is that in an online form, as much disclosure as possible of MPs' expenses is ideal.