I think that your trial lesson idea is a very good one, it will give you a chance to get a good look at the places, more important armed with "the gen" from this forum on the ways that some company's nickel & dime customers out of money with surcharges for this and that you will know what questions to ask.
I await your findings with interest, it will be interesting to see if Airways flying club are as wide of the mark on price as it seems on first inspection or do they just have a far more transparent pricing structure.?
Please report back it will be most helpful to others who are looking to start flying.