It's transparent unless it breaks. I do the same as you advise
here,
throw out LVM at install time. All the machines here are laptops with
only Fedora as the bootable OS, and everything but /boot in one /
partition, so LVM is a completely senseless default.
LVM is great.. for big server boxes with many users and unknown usage
requirements. I turn it off. I'd rather a single disk was straight
partitions (eg a laptop) and anything else gets two disks with striped
MD0 swap and mirrored MD1 file systems. IDE disks are just too unreliable
for anything but mirroring