Neo zen: do they fit like the 2 and how are they?

Hi! I’m thinking about changing my shoes and getting a pair of mizuno neo zen 1 as my only daily trainer.

Besides asking people who already have them how they like them, my issue is that since the neo zen 2 just came out, I can’t find the 1 in stores anymore. I’ve only had the chance to try on the neo zen 2, and size 45 fits me well (right now I’m wearing New Balance 880 in 45.5).

Do the zen 1 and 2 fit the same? Can I safely go with a 45 in the 1 as well, or should I consider a different size?

Thanks!