Perfect board. I love that it's all about strategy and not about dice. I've played on this board plenty of times and it never gets old, and never plays the same way twice.
I'm confused by the fact that some pipes have neutral units in them and others don't. Played on this a few times, can't say I'm really all that into it.
The draw is too important on this board, and I agree with harvito, the bonuses seem based on size, not entrances. Makes a few places too valuable or costly to take.
Agree with Gimli. I'd say that a few more black spaces would make this board more interesting. It's almost a wide-open board the way it is, which makes it almost entirely a game of dice. Fun regardless, though.