I tend to prefer breadboards with both red/blue power rails on both sides (and in the case of the BZB, not necessarily connecting them by default to allow for a side that is powered with the Arduino power and another side that is powered with external power for things like motors or to use a 3.3v power rail). The BZB breadboards, only seem to have one rail on each side.
Also, as far as I can tell, there is no labeling of each of the pins, which means if you are using pin 8 say, you could easily miscount and use pin 7 or 9. Pins near the edge (0/1 and 12/13) are fairly easy, but pins in the middle aren't.