I received the iPF6300 yesterday. What an amazing machine! I expected a learning curve, and some less than stellar prints to start with, but I'm happy to say that I'm very impressed with the very first prints. And it's absolutely the best print to monitor match that I've ever achieved.
I got a 24 inck roll of Ilford Galerie Smooth Pearl to get me started, since I'm used to using paper similar to that, and I really like it so far. I'm sure I will want to try some of the other paper eventually.
I haven't installed any software except the drivers and manual. I've been printing with Qimage. Some of the printer settings are a bit confusing, but I've successfully created a couple custom paper sizes.
I thought I read some special precautions about using higher print quality in the driver, but I can't find it. Standard, High, and Highest print quality are all listed as 600 DPI, but I assume this is dependant on the paper I'm using, right?
Thanks to everyone for the feedback.