This is a very often discussed topic (not flaming you, just saying there's a lot of talk about it). In short, it's really up to you. The construction concern, in the opinion of some (myself included), is really overblown. The Great Movie Ride recently closed, which stinks...though it desperately needed an overhaul anyway. Beyond that, nothing really popular closed. With GMR exception, all the big ticket attractions are still there...RnR, ToT, TSMM, Star Tours, Muppet 3D, Voyage of Little Mermaid, Launch Bay, Indiana Jones, Beauty and the Beast, Frozen Sing a Long (very funny...even if you don't like the movie), plus the night shows.
So if those things appeal to you and the kids, then go. If they don't, then skip it. For us...and our kids are also 13 and 10 (we have 10 year old twins)...they LOVE the park because they love the rides and some of the shows.