Potentially it could work, but there are a lot of things that success requires that I don't know that I would rely on it. I mean, you have to be familiar with the creature, it has to be in a condition that allows it to respond, it has to be willing to respond, and even with all that, there's a chance that it won't work across planes. Which means that if it doesn't work, you don't know why it didn't work, so possibly you waste a bunch of spell slots trying multiple times if it's something important.

I wouldn't take the Sending spell just for this use, but it's an interesting way to try to use a spell that you already have or were already going to take.