Re: It would have been useful
It would also be useful to know what the pricing was for each of the MNO's to allow some meaningful comparison.
Customer satisfaction is a 'how long is a piece of string' type of value judgement.
Each MVNO attracts a different type of user/customer and what is acceptable to one is NOT to another.
i.e. Gifgaf is supported by their own customers and would be useless for many who have a general lack of confidence with Computers/Forums etc.
The deciding criteria for many is the price so a meaningful comparison of what you pay for what service is needed.
From recent experience it is very difficult to get valid pricing from every provider to enable a proper comparison. In the time it took to get all the various tarrifs and special offers etc, the prices had already changed with 1 or 2 providers and the cycle had to be started again.
This is, of course, deliberate to maintain the constant 'churn' of pricing and mis-information from one provider about another to confuse and confound people changing providers/Tarrifs etc.
When moving from O2, I was given mis-information about pricing of other providers while they tried to convince me to stay on a 'better' tariff. This had also happened with Three moving to O2, previously.
Comparison sites can also be wrong as the offers are changed so regularly & some of the special offers via the comparison sites are not as good as they sound (read small print).
You need to 'know' exactly what you want and examine the small print to know what each provider includes & excludes from each tarrif for you to compare against your 'needs'.
Evaluate your need for meaningful and accessible support and research the reality vs the 'Flashy Adverts'.
If possible try your choice on a 1 month rolling contract that you can cancel at the end a month if the service/reception/usability are NOT as you were sold. :)
Transfering numbers does tend to be problem free and quick with the larger providers, again a useful way to test the quality of the Customer Support.
Reception maps etc are a 'Best Guess' if you are not in a well used area, so the map may say you are in a average reception area but reality will show otherwise particularly if you are on the 'edge' of a busy area.
(Again a good reason to try the service out.)
I am in a good/average reception area for Three/O2/EE according to their maps BUT reality is 'Three' does not work inside the house, 'O2' is marginal depending on weather and EE is just a bit stronger to allow usage in the house at all times. [2+ bars].