Is VAT included?
Are home approaches and landings included?
Is there an NDB and an ILS at the home airfield/airport?
Where will I take the test?
How many students are taken on per instructor?
Can I pay after I fly?
Can I talk to some students, in their crew room with no staff around?
RVR
You could choose a school whose sim is as close as a simple FNPT2 can be to the real aircraft (i.e. same cockpit layout, type-specific flight dynamics etc.). They do exist! However they might use as many as 6 PCs with 7 projectors, so must use a lot of electricity. Can't make both complaints.
GPS approaches are illegal in the UK.
I understand you can with less than 700 - there is a loophole that allows 400 hours. I was told this by a potential employer that uses it, but I have 1000 so don't need to know what the loophole is. Ask the CAA that question, as well as the one about the PPL IR.
A few of your questions were interesting, but don't you think it impolite to express your frustrations on a thread intended to help another wannabe in ways that do not address his request?