I got the Panther Alien in the mail, it's cool but it's probably my least favorite of the Kenner remakes. The other figures have either a ton of all-new bodyparts or a ton of new bits tacked onto existing bodyparts, and from what I can tell the Panther kind of just has the head, the tail, and the magnetic parasite.
Like don't get me wrong, the head sculpt is cool and the parasite is a nice touch, but it's nowhere near as big of a design overhaul as, say, the Rhino, Snake, or Mantis.
I don't regret buying it at all, it just feels like kind of low-hanging fruit compared to something like, say, the Bull Alien.