My friend bought the whole thing when it was first released and we gave it a whirl (virtually), last week. It was fun and some of the mechanics are neat. I like the way your accuracy goes down the more you fire in a turn. Made me think of Hudson losing his shit and blazing away at everything right before he got pulled down through the grating.
I'd call it a solid, but not great game. I haven't seen the physical copy myself so I can't be totally sure but from what I've seen, the models from PRODOS's Aliens vs. Predator are much nicer than the Glorious Day ones. Same goes for the map boards. The other components in Glorious Day seem better though. (card art, tokens, accuracy wheels, etc).
I enjoy both AvP and this one but both have niggling little oddities in the rules that prevent me from wholeheartedly recommending them. I'd like to try the skirmish rules for AvP but I still haven't finished painting the minis. (The backlog just keeps growing....)
I also enjoyed the hell out of the Legendary Encounters: Alien deck building game from Upper Deck but found that one suffered from an issue of scaling. The more players you added, the harder it got.