Used Yamaha U3 versus new Kawai K15E

[guyjefferson]

Looking for some advice.

Buying first acoustic piano and I have a choice of a Yamaha U3 1980, excellent condition (£2500) or a Kawai K15E that is only 6 months old (£2300).

I have played them both but the Yamaha was in a house in a smallish room and did not sound as good as the Kawai which I played in a shop with excellent acoustics.

I am in a bit of quandry!?!

Anyone want to give me an opinion.