Well I see Shark and PDT seems to be one of the most common around over there in the UK.
However, the nice thing with the APR tune, you get to try before you buy. Just go in and ask them for the 6hr test file.
You get to see if you like it. If not then go with someone else's tune?
But the APR, does give you multiple MAP switching, Standard, Stage 1 etc (95 or 98 Octane), Valet mode, even a Lockout function.
You can even get a full Disable so people can't steal the car unless they bring a tow truck along.
I might be pushing the APR myself. However, I have run APR now for almost 2 years. Had all there stages within reason, short of turbo replacements etc.