I LOVED ME2 and 3 and when I saw the horror stories of this game I was really gutted, and was having none of it.
I bought it for £20 off ebay recently and I have to say it's really not that bad. It has been patched up well so rarely any bugs, the story is somewhat flat but has it's shining moments and the combat really is a joy.
Apart from the facial expressions the graphics, shadow/lighting and texture work are borderline beautiful.
It's worth the price for sure.
Try to judge the game on it's own and not holding it up against the previous title and you will appreciate it for what it is and not slacking it off for what it should've been.