Bath tub

A baby bathtub was one of those things that seemed like I wouldn't use it much. So I didn't get one. When my son was smaller, we did the bathroom sink. Then kitchen sink when he got bigger. Last bath I took one with him. That worked out well, but I think it would be easier if I had a seat or something with an incline so he can lay back. That way I could have both hands free to wash him.

Any recommendations? Something kinda like this. Or do you think an actual tub would be better?