Our first experience with Gemstars was not good. We put 12 into service around 4 years ago, just after their UK launch. They were withdrawn after a year due to critical incidents both here and in the States.
Unfortunately they returned in force around 18 months ago with updated software and the inclusion of an anti siphon valve on the set. We now have 38, all configured for PCA use only.
During that time I have had to return 4 pumps to Abbott/Hospira, 2 for broken cassette latches, 1 for display problems and 1 for constant air in line alarms.
Although after a rash of similar AIL problems the last was identified as a sets problem. We also saw turn round times around 3 month with Abbott but around 2 weeks with Hospira.
We have had further problems with some pumps refusing to work with sets from certain batches but OK with others. Hospira are investigating this one.
The power supply problems we have had are largely due to abuse and as Abbott used to supply the PSU free of charge its not been a problem. Whether Hospira will do the same we don’t know.
Hospira have told use they will eventually provide a service manual and a training course to allow repairs in house. They have certainly been more helpful with technical advice than Abbott were.
Hope this helps.