We have both Stephanie and SLE 5000. Have used the SLE 2000 for many years and very impressed with it. With SLE 5000 have found alarms to go off frequently. In IMV/SIMV mode found MAP reading on ventilator was often less than calculated MAP.
SLE 5000 less problems with HFO -works well.
Stephanie has some problems with rainout.
In Australia - Stephanie has better after sales help with education and problems than SLE with result that nurses more often than not set up Stephanie - when anticipating a new ventilated baby.