I'm pregnant with our first child (due June 30!

) and DH and I are going through the whole registry deal. We're pretty much finished with it, but are going back and forth on a diaper stacker.
There's a really cute diaper stacker that goes with the nursery theme we've picked out, but with this being our first, we're not sure if these things are actually useful. We've made a real effort to only put things that we'll need on the registry and would like to continue with that.
So - from the other DIS moms out there - what did you think? Did you have one for your kid(s)? Was it great? Or, could you have really done without it?
Thanks!