We do it that way. Three nights I'm in the house & W is in the shared apartment, 4 nights the other way around. I tend to have them longer on the transition days, so it is almost a 50-50 split. It is much easier to move ourselves than the kids. The kids are in a more stable situation.
Also, we have agreed that the apartment will be a haven to retreat to. Keep it clean, have some pleasant decorations, books, etc. Not ideal of course, but I think both my W & I prefer it and are planning to renew the 6 month lease when it is up at the end of the month.
It also keeps both of us in the house for financial negotiations, and avoids having to do too much of the fighting over who gets what furniture at that could have started the separation off on a hostile note.
Certainly, not for everyone. You need someone you can work with to keep both places up or one ends up having to clean up both messes, and that won't be a good sitch.
Me: 50 W:43 S6, S3 M: 12 yrs. T: 17 M is bad & Not happy Bomb Mar '14 S 5 Feb '15 D Bomb 13 Apr '15 (but "no hurry") DB Coach May '15 Wants proceed on D Aug '15 Starting 1-on-1 negotiations Sept '15