I also shoot a DZ and have not had a single issue with mine to date. The hardest part of installing it was tying into the buss cable without a press but if you buy one through a shop they should set it up for you.(a good shop will)

They make the dz in a couple of diffrent models. I have a guide series which has the micro adjust features but all are functional and the micro adjust features are not neccessary. I just like to tinker.

Bottom line, the DZ stands upto the expectations of the price tag.