If you want to know why discussions about repetier is showing up on forums about DaVinci 1.0, it's because it's what is used with a firmware hack that you can get a lot more information about over at Voltivo's forum.
Once the firmware is hacked, the cartridge chip becomes meaningless and you gain far more control over the printer during the actual print. The downside is that you'll have to put in all the appropriate settings yourself and it is a breech of warranty terms. As to print quality, that is almost 100% on the slicer and your skill. Firmware won't change that, but does make it easier to use a slicer of your choosing without workarounds.