Fedora Core 2 Review
Not really. It's not just the MBR - it damages the partition table.
Someone even reported that it corrupted a partition table of an unused HDD that was plugged to his machine, even though he was installing it on another HDD.
I myself have managed to fix it quite easily by changing the HDD type to LBA in BIOS and running fixmbr&fixboot from the windows recovery console, but seems like its not always as easy as that.