This article is from the Fitness FAQ, by Jeff Gleixner (firstname.lastname@example.org) with numerous contributions by others.
I own Aeroblades by Rollerblade. They use a three-buckle system that
makes it easier to get in/out of. Same w/the Cool Blade, which is a
cheaper version and I think may have been discontinued. I've seen a few
comments on the Metro, usually complaining that they don't support the foot
well and/or convincingly. If you don't get a lot of feedback in this
group, I suggest posting to rec.skate.
I own a three-year-old pair of Zetras, now called the Zetrablade.
They've been great for getting me to class on time and for touring
the regional parks around the Bay Area (again, the moderate recreation/
exercise motif). And, they have heel brakes on both skates, which is
nice for beginners who aren't necessarily left- or right-footed.
If I had to buy another pair, I'd definitely get a model with at least
one ski-boot type bracket on it (there's probably a term for it that
I don't know) which helps a lot with the fit of the boot. I always
have to stop after the first 10 minutes and tighten my laces.