Doesn't seem too bad. I was looking at buying the V6 and they have this for £144 delivered after discount with 1 year guarantee.
They have other Dyson's, all come with different guarantees.
Voucher code: CDYSON2016
Hope this helps someone.
"*When you spend £135 or more in the dyson_outlet Store. Enter the coupon at checkout. Offer ends midnight 2 November Max Discount £160. UK Registered PayPal customers only. Single transaction. T&Cs apply"