A very good classic layout, of a machine if you've play before, will be recognisable from the classic layout.
A very well known machine of the time of course. £15 jackpots, seemed really evil back in the day (hell £6 ones did), but like the £25 ones, they seem extremely tame by today's standards. Of course the emulator can give a rose tinted glasses view of some machines. But a machine that if not in the mood to give out the jackpot, could still give you a good run for your money, with regular boards and regular £3 wins offered.
£15 jackpots, were beyond the really fun casual player realm, but I think definitely could give the player a run for their £20 and a small amount of fun on the way to losing it.