wrt fretlines that is a whole religious argument. I'm in the "no lines" camp as I think that it makes it easier to get your intonation right as you are forced to use less visual cues. The side dots are (or should be) lined up with the "fret" positions so that is your visual but after that it is ears and muscle memory. But plenty of guys tear it up with fretlines so it just depends on what you prefer - no right or wrong answer. I'm a sucker for clean though...
This is the board on my upcoming Skjold:
