Let's start with the good parts: thankfully Robert Quarry [Count Yorga, Vampire] is back at the Count with his faithful henchman at his side. Quarry makes a very good vampire but there are so many things going on around him that his character gets lost from time to time. Mariette Hartley [Marnie, Columbo] is a welcomed addition as the heroine of the story. Her considerable acting ability is a step up from many in the first film. Craig T. Nelson [Coach] also makes a cameo as Sgt. O'Connor. Bob Kelljan is also back as director/writer of the film. While Return is decently made, I think he did a better job with the original film.
The bad parts include the script which I've already talked about. Plus, there are no inventive touches in this film that made the first one so interesting form time to time. Finally, the vampire ho's are not nearly as entertaining this time around. In fact, this film takes itself far too seriously and there aren't enough fun moments in it, intentional or otherwise.
Stick with the original and leave this one with a stake through its ho-hum heart.
For more info check out the film's entry in IMDB.