Second favorite popper behind the yellow magic, and I usually throw a popper first every time out.
I've got about 10-12 of them, and haven't had any problems with the hooks, but I guess you could upgrade them if you wanted. The finish has also been decently durable (mouth keeps paint better than the yellow magic, while the ym side and bottom finish holds up a little better than these). At 1/3 the cost, I don't feel guilty throwing these into some hairy shiz or letting the girlfriend toss it around.
They have a softer retrieve similar the ym, where it slides and spits instead of chugs and bloops like a pop-r. You can get it to bloop if you really jerk it, but I've done best with softer, quicker jerks on the retrieve.
Most productive colors have been ghost minnow, that sunfish color above (awesome finish) and the bone. I'm sure you could get bit on any of them though, they're great baits at that price.