I like that it is very easy to use (it's free) as well has having multiple templates available so no matter what your needs are there will be something in their library! It also allows me access from anywhere which makes my life easier since i'm not always at home when sending out bills/invoicings etc - this helps keep up-to date records without being tied down by emailing clients while away but still able have everything updated if needed!! Sometimes its hard finding anything specific about an invoice template once uploaded though sometimes they don't provide any instructions either way just upload then hope ;) Also would love more options within each section such as different fonts sizes / colours ect..