The best part is that it has all your accounting needs in one place, you don't have spreadsheets or documents for each client/customer! I wish there was an option of keeping track with more than just my own clients but at least this gives me some peace knowing everything will be kept up-to date!! It's not perfect yet we are still working out kinks so far no issues as such however please do give us time before making any decisions about our product because sometimes things take longer then expected due too many requests from users like myself who want new features added.
If anyone wants easy accessable invoice management system which can handle multiple accounts (both personal & business) without having separate apps running alongside other applications - look into ray!