The beginning was... how should I put it... too simplistic and was giving wrong vibe of being extremely low-budget Harem in Otherworldly Labyrinth alike, but it turned out to be quite a pleasant watch. Maybe the story was not grabbing stars, but, it was still an alright and solid one. Characters are likeable and have their own personalities and, frankly, the MC is not too daft.
I would say, give it a try and force yourself past first two episodes if in doubt. Certainly, not a gem, but not a waste of time either, quite the opposite.