I saw this movie while I was working at a Post Production studio in Hollywood, back in 1990. I was 19 and maybe somewhat more sympathetic back then.
Post Production can get boring at times, and a lot of very dull and incompetent programming gets produced and sent through Post Houses, like the one I worked at. But this movie, even being a solid "B" flick: starts, gets moving, does it's best with what it has, and wraps up decently (as far as stories go).
From what I remember, this movie doesn't pretend to be anything but entertaining; and while other movies do that better than this one, this is a movie that can entertain you if your bored and can watch a jewel thief movie without being critical about clichés. You can tell that the producers knew how much they could get from this budget and story and I don't think this crew could've done better. Chris Lambert, Chris Lloyd, and JT Walsh... good combo, and I think they pull it off as best it could be done.