We have had this couch for 3 months now.  It is by far the most comfortable couch we have ever owned. Here are a few things I would want to know before purchase
1. They do connect together but easily disconnect if there is any “aggressive” movement on the couch. i.e. jumping on, flopping down on, etc. 
2. We have hardwood floors and they slide like crazy, so we had to put no slip bottoms on the legs (make sure to do this before you put the couch together!) 
3. The back of the couch isn’t high or very strong so I wouldn’t suggest allowing your kids to jump over the back onto the couch, even though this couch practically INVITES that type of horse play! 
In summary, if you want a couch that’s perfect for the movie room, or providing enough seating for a family night, this is it…and I’m sure it will last. 
If you have rambunctious little kiddos, I’m pretty certain this couch may not hold up more than a yearyear and a half. ‍♀️