Made this for an Easter dessert and everyone absolutely raved about it. It is very rich though so you will only need small slices...we served it with icecream and raspberries which helped cut through all the richness.
My only suggestion for improvement would be that I felt the base was a little too thin. It got lost a bit under the filling and I really had to work to get it to spread out across the bottom of the tin. If I made it again I'd be inclined to slighly increase the amounts of butter and biscuits just to get a little bit more thickness into the crust.
Highly recommended...5/5!