In the framework of the GOMOS Quality Working Group activities, a routine assessment of GOMOS Level 2 products is performed. Besides verifying the scientific validity of the Level 2 products, these activities also support the assessment of the retrieval algorithm, and they allow to compare the performances of the processor prototype for different configurations. We present here some results illustrating this assessment exercise. Special emphasis is given to the version of the prototype used for the 1st reprocessing and to the version used for the 2nd reprocessing. This latter version corresponds to the currently operational version of the IPF.