Which companyl would you recommend for the best WiFi in alfaz

The only way is to see and ask your neighbours what they are using. Alexander.

I can recommend Movistar. I've used Movistar for years without any problems. 

https://tiendas.movistar.es/alicante/benidorm/tienda-movistar-benidorm-mercado

Steve 

I can recommend Cloud Telecom . There's an office in La Nucia but service is very quick and efficient in English on the phone (you'll need to include +34 in front of the number ).

We use Movistar. We have tried all the cheaper ones and they have been ok but some point when they go off, thats when the problems start. For only a few euros more Movistar are the main providers and installers all the other companies rent lines from them, so when Movistar show up they put the cables and router wherever you want the other companies didn't do that, they put it where it 2as easier for them to install 

There are a lot of misinformed people on this site LOUDLY recommending this or that wifi supplier. Totally ignore them,  they are talking rubbish. What is good for them will not always be good for you. It all depends of where your signal comes from and your ability and location to receive it. The only way, is to find out from your neighbours what their signal strength is (and how good it is) and where it comes from i.e.the location of the suppliers aerial. that is sending the wifi to you. It only needs an obstruction between you and the sender to render the wifi useless.  Any other recommendation is based on ignorance of where you are or the subject.  Alexander.

Although I agree with the comment "what's good for them may not be good for you" the OP asked for our opinion. We can't recommend something we haven't experienced, I have tried many and still came back to Movistar (never for a mobile). I found no problems ever with getting a signal and the provider told us each time how strong it was, we live in an old Spanish finca and Movistar technicians climbed around bushes to install ours unlike Vodafone or orange who still needed Movistar to come and install a cable and put the router where it was easiest for them. So for me if someone asks I will happily recommend them

I don't live in Benidorm. 

I don't understand why you are trying to be argumentative,  I live in Benidorm and Alfaz is only a couple of kilometers down the road so it is in the area!!

As you are in Benitachell you probably know even less about this area or suppliers......

Steve 

Hello Alexander

I'm sure your opinion is welcome on here , however your  rude criticism of other, well informed posters is not!

Cheers

Elinspain