Good watch, could watch again, and can recommend, if you're okay with a date movie.
This movie holds up surprisingly well. It is dated quite a bit, just the dollar amounts they mention are off, and car phones and pay phones. I give full credit to the delivery of Arnold Schwarzenegger and Danny DeVito that keeps this movie enjoyable after all this time.
The premise is almost laughable in 1988, but since then we've come so far as it actually being possible that this moves from science fiction to realistic fiction.
Yeah DeVito's character is awful on the redeemable side, and Schwarzenegger is comically pure, but it's about using both extremes to find a middle ground in the solutions to our problems. It is also about families reuniting, and strengthening bonds: it's a touching story when you get past the comedy and gunfire.
Worth a watch if you can stand a trip in the way back machine to 1988.