I went from Seios to modified MJs to Voyagers to Koralia K series and finally the Koralia Evolutions. My complaints with the Voyagers is the mounting system takes two hands to spread the u shaped bracket out and every time I reached in the tank I knocked it off. The other is the power consumption was over twice, almost 3 times higher than the comparable Evolutions and the physical size is a little bigger. I did some side by side photos and power comparisons on AzReefs Forums a few years ago before I switched.