From reading about the Mavericks-WD problems, they might arise if using the WD software. If else problems should not occur(this after reading on the internet).
However I encountered a problem myself yesterday;
After booting up in Lion from an external HDD(La Cie), my WD Book II studio on which my iTuneslibrary(about 300GB) resides did not mount anymore...booted up again on my iMac, but still nothing. Disk Tools Pro saw the disk(pfff, already something) but not the partition :/(it said: disk does not mount). Disk Drill recuperated about 50GB of data, but by then it was clear that I faced some serious difficulty in reconstructing my iTunes library.
I then thought about trying with Diskwarrior(4.4) installed on an external Snow Leopard HDD.
It recreated from scratch a new file and directory structure. When finished it proposed to replace the new one with the old one. And(!) a preview of my WD HDD had mounted. So I succeeded in making a copy of the whole iTunes library inside(16 hours). This afternoon I gave the ok for the replacement.
Now everything is fine again!