It's what is right for the children that is important.
I have a 50/50 arrangement for my two daughters (now aged 14 and 11), and it has worked well for nearly three years now. They are with me on Monday and Tuesday nights, and with their Mum on Wednesdays and Thursdays. We alternate Friday to Sunday nights. It's a stable pattern that allows us to plan work around it, and the kids or we can always easily work out where they will be however far in advance.
Christmas is split, and we each have time to take them away for a summer holiday.
That has worked well. It may change in the future - my eldest clashes with her Mum a bit, and it wouldn't surprise me if she decides to spend more time here at some point in the future. So just remember that whatever you agree now may need revisiting at some point in the future as your daughter's needs change.
It's really important for them to have everything they need at both houses - both houses need to be a home for them, where they feel relaxed and comfortable. Constantly shifting stuff between houses wouldn't be great, so having stuff in both houses solves that.
It helps that we live about a mile apart. If they do need something from the other house, it's easy enough to sort it.
Both parents need to be able to commit to being present for the kids. In my case, I had to make some big changes to my working arrangements to accommodate it - but you don't want a kid being constantly farmed out elsewhere when with one parent, just to maintain a particular percentage of care.
Many people will tell you that 50/50 only works if both parents get on well. That isn't true. My ex wife has mental health issues - she was abusive and violent towards me, and her behaviour is still problematic at times. We have as little as possible to do with one another, but the 50/50 still works.
It is hard when they're with the other parent, and probably always will be. You need to I best time in your own interests, hobbies, work etc - when they're not woth me, I'm usually out climving mountains and stuff. You always miss them when they're not around, but you can fill your life with amazing experiences that makes the whole thing manageable.
Throughout it all, just have lots of honest & open communication with your daughter, and pay attention to how she's doing. Kids can thrive despite divorce, and much of that comes down to the strength of their relationship with both their parents. I'm a very strong believer that 50/50 is a great way to maintain the strength of those bonds, so long as it works on a practical level.
Good luck.