I like it! Isabella Oliver stuff is worth the investment if you know you'll wear it lots. The only thing I would say about this is that if you're going with the orange option it's going to look best with bare legs and neutral shoes (wedges would look great) - and with our British summers I'm not sure how often you'd get to wear it though!
It is lovely though and could be worn for work, a summer BBQ etc. dressed up/down with different accessories.