That looks like a good option, since it has the full 88 keys, and they are weighted. I’ve heard good things about that model. You might also want to check out the ones they carry at Costco.
We’ve all played for years, and have a few pianos. We still have the Steinway Grands my grandmother gave us, another is a Yamaha, and one is an electronic. Those, along with other instruments, have kept us all interested in music over the years.
I don’t know if you plan to have the kids take lessons, but, if so, you might want to run this by a music teacher. As has been mentioned, if they really want to learn to play in a way that will last them a lifetime, instruction is essential. If it’s just for fun, that’s fine too.
Imo, having the ability to play musical instruments, as well as other artistic endeavors give a person a great balance, especially when you add the academic, along with sports and other things to the mix, so I think your kids will enjoy it.