I grew up on 80s stars like Stallone, Arnie, and to a lesser extent guys like Van Damme, Segal, Norris, etc. I love the genre and I have some great memories from those days, such as when I sneaked into my first R rated film by myself - "Cobra". (Hey, for me it was a daring maneuver! lol) Anyway, loved both the Expendables films, but really wasn't sure about this one. Arnie really was showing his age in the trailers and the film seemed like it was going to be a far cry from the Arnie films of old. Thankfully, I was surprised at how entertained I was. I expected it to be way more over the top than it was, but in some areas they showed respectable restraint. It was paced well and there were some really funny scenes interspersed throughout. Not a great film by any means, but for those of us who are fans of Arnie, it's a nice "welcome back". I also feared they may try to overplay the Knoxville hand, but I think they allowed him just the right amount of screen time.
I definitely recommend it for a rental when you're looking for a fun, action packed film that doesn't insult your intelligence. Welcome back, Arnie!