I have a Gerber multi-tool from the early 90's. As far as functionality, they are essentially the same. A lot of people have trust in Gerber from these tools of this era and they were very popular. It still works to this day with literally thousands of uses.
But I wanted a new one because even that one is getting a little worn. I understand this is the compact version, not their top of the line, but the difference is drastic. The gauge of the steel is much thinner than the old Gerbers, it almost feels flimsy. I would NOT trust putting any kind of real pressure on the pliers.
I played with the 600 series at a store just to see if this was a nerfed model, and while they were better, still fell victim to the same problems.
That said, if you haven't been spoiled by higher quality early models like I have, these are still good and functional tools. They do exactly what they are supposed to. I am just sad to see how "lightweight" the construction has gotten. I could not consider this a lifetime tool anymore.
Also, the knife is completely different, the knife edge is completely straight. The one in the picture is the knife that Gerber's have always had but I guess they updated it. It looks silly, but it probably works just as well.