Unbranded wireless routers on Ebay ?

Now that "my" BT cabinet has a brand-new FTTC cabinet next to it, I'm
getting impatient for the service. So I've been looking on Ebay for
a wireless router which can run DD-WRT. There are several identical
unbranded models on there, brand new, for about £25.
Just wondering if they are any good ? I guess it's only the hardware
to be concerned about, as DD-WRT is a known quantity.

Should have mentioned that I searched Ebay for just "dd-wrt", gives around
37 hits, of which 4 are for the same unbranded router. Another couple
of hits are for unbranded 'N' routers.