MIL gave us a swing after both DH and I told her not to. It didn't even swing on it's own. You had to manually push it. She got it second hand and it was so bulky. Heidi liked it for all of 2/3 weeks when she was 2 m/o and then she started screaming every time I set her in it. Eventually it got knocked around the kitchen so much in frustration of it being in the way that it got broken and we threw it away.
The biggest thing that made it a bad gift -to me- is that we both asked her not to give it to us in the first place bc we've never used that kind of thing and we like it that way. It was disrespectful for her to give it to us against our wishes. But she's always like that.