ST170 any good

[White_van_Man]

I have a 1.8 focus (T reg 105k miles) i think its a great car fun to drive handles well etc im just longing for more power I cant afford a new ST so im thinking of upgrading to the ST170.

Iv heard a few people say they arent as good as they hoped not quite powerful enough is it going to be worth the 6-7k upgrade cost?