Lilo doesn't support it. Other than that I have no problem with it. I think it had some problems with being declared "prod ready" by some vendors with some cert

Lilo doesn't support it. Other than that I have no problem with it. I think it had some problems with being declared "prod ready" by some vendors with some certain kernel version, and then a bunch of redhat users went off and tried it with ancient kernels and lost data. To me, this is just ext4 all over again. That filesystem was _terrible_ in the early days. Ext4 is pretty ok now, just slow...