The Karlsruhe Research Accelerator (KARA) as a test facility provides an excellent environment for the development and benchmarking of new diagnostics. Examples of recent developments are the ultra-wideband readout electronics for ps-fast detectors, KAPTURE, and an ultra-fast line-camera with up to 10 Megaframes per second and continuous data streaming for optical and electro-optical bunch diagnostics , KALYPSO. With this ability for turn-by-turn readout, recent systematic and comprehensive investigations of the so-called micro-bunching instability were feasible. This is complemented by using commercial equipment such as our bunch-by-bunch feedback and low-level RF (LLRF) systems to enable characterization of these diagnostic tools in our short-bunch, low-alpha operation mode. This presentation will give an overview of the current status and outlook also in the context of KARA being part of the ARIES framework and possible opportunities for transnational access for similar investigations.