What kind of accuracy can I expect?

The GSD (Ground Spatial Distance) can be as good as 1.5 cm. The relative and absolute accuracy is directly related to the GSD: A higher GSD means higher accuracy. Generally, the accuracy is between 1-2 times the GSD, primarily depending on the amount of Ground Control Points and/or utilization of the PPK module. The PPK module will result in a significantly higher (absolute) accuracy of your 3d models and analyses.