Are you talking about this place (I looked on Gronze and this is the only lower priced GIte that I saw):
Información del Chambre d'hôtes Chambre d'hôtes Andy Le Sauce, en Espelette: precio, plazas, características, etc...
I saw what the reviews look like and you are right they don't look great. I read the reviews on Gronze and leave reviews on Gronze. There was just a post recently discussing reviews, especially negative ones. on Gronze. I saw that the biggest complaint/worry was about cleanliness. Always a red flag. There are some pilgrims who feel entitled and that was the focus of the discussion about Gronze reviews. There were two that complained about the dirt and one neutral review and another review that I believe was about someone making noise. I would say based on looking at reviews and staying in 100's of albergues and gites, that this place is not ideal but it is a bed, shower, and breakfast. And of course the reminder that we pilgrims should always be thankful. I went to Bookings and translated lots of reviews and all were positive and none mentioned the lack of cleanliness. I would not change my camino based on this one problematic gite. Sometimes some of the most trying situations can also yield some of the best memories of a camino.