  Reciprocating probes are a classic and widespread tool for the investigation
of the edge and Scrape-Off Layer of magnetic fusion plasmas. In the Wendelstein
7-X (W7-X) stellarator, the Multi-Purpose Manipulator serves as a multi-user
platform for probe measurements of various kinds. This paper presents a review
on reciprocating probe operation during the first operation phase of W7-X with
a test divertor (2017-2018). It gives an overview of the diverse zoo of probe
heads and presents lessons learned about probe operation in complex magnetic
geometries, operation safety, and probe head design. A few examples of probe
measurements with a focus on unexpected observations are presented.
