I am looking for a good system to implement in my business for an online help-desk system. I would like to have my customers login to this system with their own username and password, and be able to open service tickets, get update on existing tickets, see progress and such, with emails notification and other tools. Do you guys have any good experience with any similar systems?
I read about OpenTicket (sourceforge), but I would like to hear of more products, and perhaps your opinions on this specific one.
Any help would be greatly appreciated.