I use the specific one as it also offers historical rates, not all do. With the historical rates your transactions are shown at the US$ price at the time of the transaction so a nice way to see what the transaction was worth in $ back when it was executed.
Thomas
A suggestion - not sure if this is possible but it will be a nice feature if the USD Amount can be included in the data when exporting the history.
I also made a post some time back to ask whether the order of the export file could possibly be changed. Currently the export order is
Would be nice if it could be changed around to the following:
Currently when exporting to a spreadsheet (csv) I always need to rearrange the columns in a more logical order, as above. Not a major problem but would be nice.