Are all Alexandrite Lasers similar?

Should I expect to get the same skin reaction from any alexandrite laser?
I’ve had the chance to use both the Gentlase Alexandrite and the Lightsheer Diode lasers. The Alexandrite was easy on my skin and did not cause burns and scabs. The Diode always does and they take months to heal. I want to switch back to an Alexandrite but the office doesn’t have Gentlase, they have “Arion”. So will I expect similar skin effects as with Gentlase?

ps…the joule settings were similar for both. (the technician knew how to best complare the two lasers).