C'mon I am dying to know why the same posts come up again and again on tefl.com.
I don't know that school in particular, but of the CVs received by schools when they run an advert, nearly all are destined for the bin. Of those that aren't, the best teachers are often busy during peak lesson times, will only do blocks of lessons near their home or expect more money than the school wants to offer, so it's possibly worth their while to keep the advert running so as to widen their net.
It would be interesting to hear from someone who has experience of that school.
There's a few comments on Warsaw language schools in this thread here.