I feel the need to defend this one. It certainly isn't for everyone, but anyone who's enjoyed, say, David Sterling's oeuvre may enjoy this specific flavor of no-budget sci-fi.
For starters, there's horror and softcore veteran Beverly Lynne, adding a familiar face to a pretty well-crafted (if a tad slow) story of pod people and alien conspiracies. The director seems to have compensated for the relative lack of nudity in its predecessor Alien Vows by really amping up the boobage with this one. So there's that.
Unfortunately, all the alien stuff is totally CGI, which is a big minus. Still, when compared to others of its type and budget, I really think Vegas Skyline does a lot more with what it has. Maybe I've just seen too much of this stuff; maybe finding a movie on this level that can simply tell a coherent story shouldn't be a pleasant surprise. Low expectations notwithstanding, as a long-time trash fiend I liked it.
Honestly, Joe Bob would probably say check it out, and I do too.