I’ve seen posts on here about dramatically increasing the round up feature in pots from £1 to £10, but personally I think it would be better if the user can set how much they want to round up. Maybe starting from 10p and going up in 10p increments from then on. I feel rounding up to the nearest £1 is quite dramatic if a transaction is say £17.03. I would like to be able to round up to the nearest 10p as it would be less noticeable on my overall balance.
If you make use of IFTTT then you can choose more specific round up amounts, of which there seem to be a few at the moment.