Not been there, and I doubt much to see, no! I think you'd probably need a car to get there too. It's doable though, you can fly to Valladolid or get the train to Valladolid from Madrid (unless you have a particular desire to go to Zamora). If you do hire a car then to get there, then you could make a nice day of it, there are some beautiful places around there, Urueña for one.
You can look at it on Google Earth Street View. It's tiny but got the usual huge, medieval church. Ayuntamiento, panaderia, usual sort of thing. Reminds me of a village we stayed over in Aragon - most of the houses look awful but when you look into the history it is very old and quite interesting. Villalobos seems to have been founded in 1159, not taken over from muslims but actually founded as part of the repopulation process when it was customary to dish out lands to friends and nobles.
All depends how much you appreciate this sort of basic history and culture - as opposed to massive tourist sites like the Alhambra. and the Palacio Real at Aranjuez. It's all history and often in these places town halls and churches keep considerable records of births, deaths and marriages - always hoping they didn't get destroyed in the civil war.
In your situation I'd be there like a shot. There's bound to be a bar to refresh. Valladolid is indeed the place to fly to if possible (Stansted?). We flew in there once and had a hire car.Edited: 31 October 2017, 19:31