Hi guys! I guess this could be an interesting topic so here is my issue:

I was looking for a PhD position in Chemistry/Materials Science after I got my MSc in Italy.

I got some offers from a couple of UK Universities for a PhD in strong chemistry groups.
These groups work on a related field of my previous MSc thesis one but I would like to change my topic and find a position in something different. So I applied to a famous german Institute and I fortunately got one more offer! I was really happy but the Prof will move to KAUST (Saudi Arabia) next year so I should follow him. In this case (if I will accept this offer) I will work one year in Germany and then complete my PhD at KAUST.

My biggest concern is about the reputation of the PhD gained. I know the reputation of UK universities (as well the one of the german institute) but I don't know anything about the Saudi Arabia one.
What should I do? Do you know how industries or Universities consider a PhD from KAUST? I don't want to get a PhD that is not well accepted worldwide or that can let the other think I am not well qualified as the european/us doctorates.
I think the most important think is the kind of research you are going to do but at the same time I don't want to make mistakes chosing a not well esteemed University for such a crucial choice. I am scared that if I accept to get a PhD from KAUST (even if I will be selected first from a german institute, where I will spend one year) then I will find problems in getting a job later.

Please help me!! Thank you guys :)