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- many of the "building block" tools can be used at FELs around the world: e.g. python, MPI and, in future scikit-xray algorithms
- same code works for online/offline analysis analysis (with real-time plot display), allowing users to do their entire analysis chain with one tool
- ability to use both simple and complex languages (python/C++)
- users don't have to wait for xtc-to-hdf5 conversion time
- access to calibrated images both online/offline (pedestals, common-mode, geometry, bad-pixel mask) for complex detectors (CSPAD, pnCCD, EPIX)
- local support at SLAC from ~10 people (core offline group and instrument engineers)
- simple detector names using experiment-specific "aliases"
- free
- ability to randomly access xtc data ("jump" to event in middle of file)
- support for fast parallel processing of xtc files with thousands hundreds of cores using MPI
- ability to run entire psana code on Windows/Mac machines using virtual box (useful for off-site visualization or code development, for example)
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