Hi, Duds,
I think that you'll have to make your decision when you get there. The thing about the albergue in Ane is that it receives little/no attention from anyone in the village. So the condition will depend on whether any pilgrim has bothered to try to clean it up a bit. And depending on how hot and tired you are, you may have a different tolerance level for dirt.
The walk from Segovia to Santa Maria is a long one, even though there is little to no elevation gain. There's a stretch on big loose rocks, there's a stretch on sand that your feet sink into, and the Sunday that we walked it there was not one bar open between Segovia and Santa Maria.
On the plus side, the 12-sided romanesque Vera Cruz church leaving Segovia is quite nice, and you will have some respite in pine forests. Also, if you're leaving Segovia on a Sunday, there seems to be a weekly balloon launch early in the morning. We saw it, and I've seen other pictures of it. It is fun to watch.
We were so hot and thirsty when we arrived at the last little town before Santa Maria, which must have been Pinilla. We saw some people sitting in a courtyard and we asked if we could have some water to refill our bottles. Turns out there is a casa rural there that is rented out from time to time, and the family was quite happy to invite us in and hear all about the Camino de Madrid (in exchange for some ice cold drinks and some snacks!).
I'm glad we walked on to Santa Maria. There is a nice cloister there worth visiting, there are several bars/restaurants, and a grocery store. The albergue is totally donativo, small with 3 bunk beds, a tiny kitchen and bathroom. It has a nice story attached to it. The owner/hospitalero is a truck driver and the house has been in his family for generations. When he was a kid, the house was always used by migrant workers (always from Galicia, he said) who came to work in the fields for short times. He remembers kids about his age (6-8 years old) also working in the fields and he said he always has felt a bit guilty about that. So, he thought it'd be a nice homage to them, to open an albergue, since he would be serving "transients" but in a different way. He's never walked the Camino either.
The good thing to know is that you'll have a choice, buen camino, Laurie