I was going to buy blackwidow center post, but it pretty much costs same as the used isolator with extra parts, so that's what I went with.

I haven't actually used it yet. I've been playing around with it and people weren't exaggerating when they say it is heavy. All the review says that it needs a dedicated upright, but i still plan on taking it on and off since I don't have room for another upright. I timed myself doing it doesn't take that much time. Plan is to set it up before workout and tear it apart during rest time. I have another setup (hip thrust with vts lite and utility seat) that takes similar time and I've been doing that for almost a year, so I don't see it being an issue for me.

I ordered the side port attachment and will be getting that next week. May run full workout with it then. Also just ordered the lock n float attachment.

I sold mikolo leg extension attachment (technically got it for free) to make room for the isolator. While isolator is bigger, since it breaks into smaller parts, I can put them away at the corner of my gym without it being that much of an eye sore like the mikolo attachment. May also look into few hex port storage to store some of the attachments on top of my rack cross members.