The centurion basically replaced the advantage (in combination with the delta) and also filled the void for a large footprint rotator bar. They were very common on base model ambulances and fire apparatus. They were commonly extremely under populated/optioned, with some of the NFPA models having three rotators and insufficient mirrors leaving giant empty spots.
When outfitted properly, these were actually very effective light bars. I would argue that they rivaled the XL5000 in rotator brightness. I think the main problem was the sorts of applications where they were used commonly did not need a lot of the options. These applications called for a low amp draw basic rotator bar, which again, I think this particular bar didn't necessarily excel at due to its lack of mirror options. In order for a vehicle to be a good candidate for this light bar you needed something that required a high profile bar. While not always true, by the time these came along, high profile bars were not commonly packed full of a bunch of options. Near the end of the halogen rotator era most rotator bars were on fire apparatus and not fully optimized; they represented an economy option.
That said, if one were so inclined, these bars could be absolutely stuffed with very visible rotators and 600 series strobes "on top" while still having unobstructed lower level stationary lights. A local fire department actually fully optimized an NFPA sized bar. They ended up with each section having multiple rotators or a single rotator and a 600 series strobe. They also put a large line of flashers and corner strobes in the lower level. It was kind of like upsizing an MX7000 into an XL5000.
Unfortunately, the timing of these bars wasn't great as the halogen era was drawing to a close. By the time these were discontinued, a large footprint bar was the freedom which would have been considered lowish profile when this bar came out. Had this bar been offered 10 years sooner I think you would have seen it become a lot more prolific in the fire and EMS markets.