I just watched this this evening. It's not a bad creep out film and Dren made for an interesting new life form. I liked that they got away from the alien/mutant/whatever as something scaly and ugly and gave us something almost attractive (in a weird sorta way).
The ending was Ewww!
That said both of these scientists were screw ups psychologically. Fred and Ginger both being male and duking it out was Ewww!
Not an awesome film, but not bad.