we sell the heck out of the ip office, and have not had the huge issue volume that i hear about. we had some issues in the past, but honestly most of those could be explained by lack of experience, training, pc's that do not meet the specs, etc. if you do not do a network assesment then it is your fault if it does not perform. from my experience going in after other installers/programmers of the ipo, they[customer] think it is crap, until after i leave, then they like it. i do not think i am that great to change their opinion on their investment, unless the original install was the issue, not so much the equipment. it is certainly not my good looks.
