Having worked with all of the following systems(hemoCare/MediTech/SunQust/Cerner) my 2cents is Sunquest is a very good LAB system and an average/fair Blood Bank system. I agree that the many, many many code make initial Blood Bank education challenging. The builds of the products,QA failures, flags overrides are individualized and therefore very trickyand require almost continual maintenance (as others have pointed out). As SQ progressed into the Windows versions which they call (GUI Versions 6.0 and up) ISBT issues are still lacking. Conversely, when MICRO went GUI their inital version came with the cool clicks and whistles . BB GUI 6.0 went live bare bones several years ago with the "promise" of full ISBT functionality with 6.2, no really 6.3, no realy, really 6.4. Decent system but it seems like whatever improvements you are looking forward to...just seem to be a few upgrades away....for a cost$$$.