Pros
Interesting work with a massive scale - our work will impact the lives of millions of people globally. Great culture has kept me happy at Ocado for many years. Good benefits, my favourites are the sliding hours policy allowing me the flexibility to start any time before 10 and finish any time after 4 provided I do the contracted 8 hours of course, and the ability to have parcels delivered to work. The staff discount on groceries has saved thousands over the years. The share incentive schemes have also been very lucrative due to Ocado's performance on the stock market.
Cons
You might look at the head office location as a con - it's in Hatfield which is a short way out of London. For me though, the commute from London zone 3 out to Hatfield is much more pleasant than it would be going the other way.
