With the same number of rows as a A321ceo and the fact that 1 door is missing, also due to the recaro seats being slimmer than the Pinnacles, there must be more legroom throughout the A321neo compared to the A321ceo. (Same goes for A320ceo vs A320neo.)

I had a flight on the slimlines in the A321neo and didn't find it be a problem really. I personally never recline my seat so that drawback wasn't an issue, (and I'm happy as it means no one can recline into me), although granted it will be for some.