By an large Invoice 2 Go is fantastic. I have been using it for about 3 years now and its simple to use and easy to export information out of it for my accountant. My only couple of gripes is that at times I create then save and email an estimate or an invoice and for whatever reason the next time I log on that invoice or estimate isn't there. However if I have created documents after that the sequential numbering will continue with that particular document number missing. Its like it dropped off the internet and not saved that particular document to my account. This has probably happened about half a dozen times so not a big issue but cant work out what the exact problem is. Secondly, probably the issue that happens more often is when creating an invoice or estimate for what ever reason it duplicates a particular line item. When you go to delete it, it will delete both duplicate line items so you have to input the information again. Its a bit annoying. Hopefully you can understand my ramblings here - if you wish to contact me further feel free. Cheers Dylan