Only thing I have read is medium to med-large plant

Nice plant gonzer,I always liked this one,kind of different from most aechmeas,with those sawtooth spines,odd leaves, and multicolors.Certainly something different.I got one long ago from Tropiflora,but it did'nt survive long for me.Saw one on e-bay last year,but the price tag was way up there. Hope yours does well,and then you can tell us how large it grows.
Bob

Beautiful plant Gonzer. Love everything about it!
Patris

It is a beautiful plant, and that is a particularly attractive specimen you've got there, gonz. Only thing, it's EVIL! Yours doesn't really show it, but it develops fierce backward-hooked spines, so that when you get near it and try to back away again it grabs your clothing (or skin) and won't let go! NOT user-friendly.

I had one a long time ago and it was about 3 ft. across, as I recall.

Evil???? You mean this plant's got bad JuJu? Just the type of plant I want where the neighborhood kids might stray. It sure comes off looking like Agave americana varigata in ways doesn't it?

Yeah,gonzer,'backward-hooked spines'. Sounds like this aechmea had a bromelia girlfriend way back when,and the kids carry on the gene. Try not to get 'hooked'! And yes,there are simularities with the Agave americana.
I think maybe this aechmea has a checkered past! [a 'hooker'?] Bob

That's it! No more of my plants are gonna get slammed here! We're taking our bats and balls and it's off to join Dave's. ;-P