We do use VOIP phones at the office, but I don't really like or dislike them. At one point the phones refused to work with a standard dsl line (small office), but now they work well with T1. No problems, easy to use, but I just dont tend to get too excited about phones. I don't pay the bills, so I cant say anything about cost justification - no complaints though.
I would say that's definitely (note that it is spelled correctly) a positive comment. Basically you pick up the phone and it works. At some point you (your office) made the conversion from TDM to IP-based phone service and you didn't skip a beat...
I'm guessing the accountants might have a grin on their face.