I signed up to Wave financial the middle of last year, probably one of the best move's I have made. The main reason I chose wave was because it offered a free package, but now I would not be without it. It has made invoicing easy, receipt's simpler, receiving payment's via card or bank transfer, just everything.
Unfortunatly, they have been taken over and will be withdrawing support for Uk banks, which mean's they will not automatically download your bank statement's. If I can not find a easy way around this, I will definatly sign up to another package, they are worth every penny, and quick book's is looking the front runner at the moment at 8 quid a month.