Several years after first (re-)commissioning at GSI in a new configuration, CRYRING@ESR has been developed into a new scientific instrument for low-energy physics and is a regular part of the accelerator facility. This talk gives an overview of the beam instrumentation and reviews available operational experiences.
The discussion includes both injection schemes, from experimental storage ring ESR and local injector linac, since their energy regimes, and hence requirements, are quite different. The performance but also limitations of the existing beam instrumentation is illustrated with various examples. Finally, some ideas and next steps in detector development are outlined in order to meet demands of upcoming experiments.