Interesting, but frustrating.
Playing it on an iPad (the 'new' version, which was released between versions 2 and 3) and, thankfully, haven't encountered any moments which break it.
There is a definite lack of spatial awareness, though. Even if you set the camera to automatically turn with you, it doesn't do so immediately. You have to move a certain distance before it starts to move, which forces you to use the hand which should be comfortably rested in position to operate the strike/jump commands, to manually swivel and elevate the camera. Hectic when you're up against more than one target!
Finding out how to deal with enemies carrying shields, where you're told to do a 'heavy attack', is also quite confusing. You're not informed what a 'heavy attack' is classed at and a jump doesn't seem to have any more of an effect than a normal strike does. I tried just sort of randomly pressing hurried combinations of strike and jump and... Something appeared to successfully dislodge the shield, but I'm not sure what it was.
Entire thing looks/plays a lot like Monolith's entry to the AVP games, except completely in third-person. Which, honestly, would be perfectly fine, were it not for the frustration of the camera! You just can't get the degree of control available on mouse/keyboard. The movement is achieved by a virtual stick on the left-hand side and you find your thumb kind of just slipping off the screen when you need to make the character move for an extended period of time, forcing you to 'restart' the movement. In itself, not necessarily bad, but it's causing me to keep getting killed on a level which effectively forces it to change to an almost 2D side-scroller, where you're trying to move the Alien across an expanse of ground, navigating crates, while a dropship's firing at you. In a PC game? Easy enough. Maybe even would've been fun, but it's difficult to do this on the movement system they've set up with any real intuition.
Having said that, it feels kind of fun. Certainly not a waste of money for something this cheap!
A word of warning, though: During moments where you get the option to affect a kill animation of your choice? You have the option to choose an arrow-labelled direction and there's no indication which one you 'should' do, meaning that, sometimes, you'll try one and the enemy who's in your grasp will somehow find the strength to block or force you away. No explanation of what the deciding factor is when this happens.
Have definitely got the impression that if they had released it cheaply for PC, it'd be a lot more casual and entertaining. It's primarily the medium of how they've set it up to play through a mobile device, which makes it more frustrating than intended.