Well it's just too similar to the first 2 movies. Breaking down the storyline, there are just so many aspects, turns and scenes that have been in the previous movies; that other than different characters you'd swear you were watching a remake
The final scene of giving birth to a hybrid alien/human was disastrous. I'd say 45 seconds that 8 inch baby turns into a 8 foot freak with a stupid tail.
For newbies it's okay. For fans on the alien franchise I personally found it a let down.