This component had everything I needed except delivery notes (some call dispatch notes). I contacted the developers and they responded very quickly and added this functionality in no time. Further to this, I made few more suggestions and they were all implemented within few days.
I am a very happy customer. I cannot thank enough. The most important thing for me is; they took their time to reply my emails.
Excellent support, excellent communication and needless to say, excellent component.
Bottom line: it is worth every penny.