I would have, yes. Used to get the TLC pack on the MINI's (same sort of thing but was even more of a no-brainer as it was only £100! More now though!).
For a daily driver - yes, would make sense. For a car like mine, where there is only 1 service per year, it would not be cost effective. Think the M pack is £1000 for servicing.
Didnt get offered it
We only do 6-8000 a year max so unsure if worth it? Was it three years servicing for £300? Including oil changes and spark plugs etc?
I've paid for TLC on 4 Minis and sold 2 of them before the first service so it would seem a waste on the face of it but my view is that you are likely to get less by selling a car that will cost the next owner more to service so still see it as a must.