I have!
I had one like the one in the classifieds... For less than a week.i bought it on here, and almost immediately put it back up for sale. But it wasn't the fault of the case.
While from a protection point of view I think it was great, it added a lot of size and inflexibility. My house is pretty small, with low ceilings. So storing it when the bass was out was a problem, and moving things around to put the bass in or take it out was a bit of a mission. Also, the bass just fits in the car in a gig bag, with the size added by the foam hard case, it was too tight for comfort.
In a different living situation, with more space, maybe more than one bass to store, and a van, I'd definitely think about picking another up though. It was pretty good, and definitely provided a significant upgrade in terms of protection.