This movie was good enough to sit through while doing other things, but it wasn't good enough that I'd recommend setting time out for it. The storyline was good, but it was far too cliche. It didn't captivate me or excite me. It was something to do while passing some time and nothing more. The acting was pretty good, and so were the sets, but much of the writing was far too predictable.
Also, the storyline rules seemed to change part of the way through. In the beginning, Isis was running from Riker, but halfway through, she was chasing him and knew psychically where to find him. While his power was draining the longer he was on earth, none of the other aliens suffered that problem.
And finally, the last scene was confusing. I didn't know where they were and I'd forgotten who this particular antagonist was. It could have been left out altogether and the movie would have been no better or worse.
So, if it's on the movie channel and you like sci-fi and you've nothing better to do for an hour and a half, go for it. It'll at least keep you interested. Otherwise, give it a pass or tape it for when you're looking for a marathon veg-out in front of the TV.