What would you do??

So I'm a second time mom. My two year old was a angel child and I got really lucky but now I have a one month old son and he doesn't seem to like some of the things we saved from his sister, the swing being one of those things.

We sold the old swing and got a Graco Glider LX Gliding Swing. His Nana's house has one similar. I was looking for the exact one but don't know what it's called or have a picture. Slightly frustrated that he doesn't like this new one either. What should I do ?