The best thing about this system was it's ease to use & navigate around! It also had all my invoices in one place which made things easier when I would need them at any given time or day (ie Payday). Sometimes you could not search through past bills but there were ways round if necessary - however sometimes searching only led me straight back into previous bill searches rather than finding what i wanted right away so thats something they should look after better maybe? Just make sure its easy enough/intuitive before purchasing otherwise might find yourself lost easily within their product!! If looking up old invoice numbers then having everything together makes life much simpler- especially since we do alot more online now too where our website has loads going live every month meaning lots being added throughout each week etc.- therefore keeping track becomes harder without some sort off database like these guys provide us.